.page-features {
  --feat-hairline: color-mix(in srgb, var(--color-contrast-ink) 26%, transparent);
  --feat-glass-deep: color-mix(in srgb, var(--color-contrast-ink) 8%, transparent);
  --feat-tint-primary: color-mix(in srgb, var(--color-primary) 46%, transparent);
  --feat-tint-accent: color-mix(in srgb, var(--color-accent) 42%, transparent);
}

/* ---------- 首屏：满宽暗色横幅 ---------- */
.page-features .feat-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-block: calc(var(--space-8) + var(--space-4)) var(--space-8);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-features .feat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(58% 74% at 86% 6%, var(--feat-tint-accent), transparent 68%),
    radial-gradient(52% 68% at 4% 94%, var(--feat-tint-primary), transparent 70%);
}

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

.page-features .feat-hero .breadcrumbs {
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

.page-features .feat-hero .breadcrumbs a {
  color: var(--color-contrast-ink);
}

.page-features .feat-hero__kicker {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  color: color-mix(in srgb, var(--color-contrast-ink) 74%, transparent);
}

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

.page-features .feat-hero__lede {
  max-width: var(--measure);
  margin-top: var(--space-3);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 90%, transparent);
}

/* 能力徽标带 */
.page-features .feat-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) calc(var(--space-1) * 1.5);
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.page-features .feat-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: calc(var(--space-1) * 0.75) var(--space-2);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-pill);
  background: var(--feat-glass-deep);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: border-color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.page-features .feat-badge:hover,
.page-features .feat-badge:focus-visible {
  border-color: var(--color-contrast-accent);
  background: color-mix(in srgb, var(--color-contrast-accent) 18%, transparent);
  transform: translateY(-2px);
}

.page-features .feat-badge__idx {
  font-size: var(--text-xs);
  color: var(--color-contrast-accent);
}

.page-features .feat-badge__state {
  padding-left: var(--space-1);
  border-left: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

/* 三个关键数字卡 */
.page-features .feat-stats {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.page-features .stat-card {
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  background: var(--feat-glass-deep);
}

.page-features .stat-card__num {
  font-size: var(--text-3xl);
  line-height: 1;
  color: var(--color-contrast-ink);
}

.page-features .stat-card__label {
  margin-top: var(--space-1);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-accent);
}

.page-features .stat-card__note {
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

/* ---------- 三条服务线 ---------- */
.page-features .lines__head,
.page-features .next__head,
.page-features .path__head {
  max-width: var(--measure);
  margin-bottom: var(--space-6);
}

.page-features .lines__grid {
  gap: var(--space-3);
}

.page-features .line-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
}

.page-features .line-card__when {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-primary);
}

.page-features .line-card__title {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

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

.page-features .line-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-1);
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-2);
}

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

.page-features .line-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(var(--space-1) * 0.9);
  width: calc(var(--space-1) * 0.75);
  height: var(--border-thin);
  background: var(--color-accent);
}

/* ---------- 能力段通用 ---------- */
.page-features .cap {
  padding-block: var(--section-y);
}

.page-features .cap:target .cap__head {
  border-color: var(--color-primary);
}

.page-features .cap__head {
  display: grid;
  gap: var(--space-3);
  padding-bottom: var(--space-4);
  border-bottom: calc(var(--border-thin) * 2) solid var(--color-line);
  transition: border-color 180ms ease;
}

.page-features .chapnum {
  font-size: var(--text-4xl);
  color: color-mix(in srgb, var(--color-primary) 30%, transparent);
  line-height: 1;
}

.page-features .cap__headtext .lede {
  margin-top: var(--space-2);
}

.page-features .cap__grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-features .cap__body {
  display: grid;
  gap: var(--space-4);
}

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

.page-features .figure__media {
  position: relative;
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-deep);
}

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

.page-features .figure__caption {
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

/* 难处条带：强调色竖条，无卡片阴影 */
.page-features .pain {
  padding: var(--space-2) var(--space-3) var(--space-2) var(--space-3);
  border-left: calc(var(--border-thin) * 3) solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: linear-gradient(90deg, color-mix(in srgb, var(--color-accent) 12%, transparent), transparent 72%);
}

.page-features .pain__label {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-accent);
}

.page-features .pain__text {
  margin-top: var(--space-1);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-features .pain__note {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  opacity: 0.72;
  transform: translateX(0);
  transition: opacity 180ms ease, transform 180ms ease, color 180ms ease;
}

.page-features .pain:hover .pain__note,
.page-features .pain:focus-within .pain__note {
  opacity: 1;
  transform: translateX(var(--space-1));
  color: var(--color-ink);
}

/* 收益列表 */
.page-features .gain {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-features .gain li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2);
  align-items: baseline;
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-features .gain__key {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-primary);
  white-space: nowrap;
}

/* 十二区间刻度条 */
.page-features .bars {
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}

.page-features .bars__track {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: calc(var(--space-1) / 2);
}

.page-features .bars__seg {
  display: block;
  height: calc(var(--space-4) + var(--space-1));
  border-radius: var(--radius-sm);
  background: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-line);
}

.page-features .bars__seg--on {
  background: color-mix(in srgb, var(--color-accent) 78%, transparent);
  border-color: var(--color-accent);
}

.page-features .bars__scale {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

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

/* 阵容分层列表 */
.page-features .roster {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: calc(var(--border-thin) * 2) solid var(--color-line);
}

.page-features .roster__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-1) var(--space-3);
  align-items: baseline;
  padding: var(--space-2) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-features .roster__pos {
  font-size: var(--text-base);
  color: var(--color-primary);
}

.page-features .roster__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

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

/* 回放节点 */
.page-features .replay {
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}

.page-features .replay__track {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: calc(var(--space-1) / 2);
}

.page-features .replay__tick {
  display: block;
  padding: var(--space-1) 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  border: var(--border-thin) solid var(--color-line);
}

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

.page-features .replay__list li {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-features .replay__name {
  display: block;
  font-size: var(--text-base);
  color: var(--color-ink);
}

/* ---------- 衔接：暗区路径 ---------- */
.page-features .path {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-block: var(--section-y-lg);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-features .path .section-title,
.page-features .path h2 {
  color: var(--color-contrast-ink);
}

.page-features .path .lede {
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

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

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

.page-features .path .figure__media {
  border-color: var(--color-contrast-line);
  background: color-mix(in srgb, var(--color-contrast-surface) 70%, transparent);
}

.page-features .path .figure__caption {
  color: color-mix(in srgb, var(--color-contrast-ink) 74%, transparent);
}

.page-features .path__map {
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-lg);
  background: var(--feat-glass-deep);
}

.page-features .path__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-features .path__line {
  stroke: var(--color-contrast-line);
  stroke-width: 3;
  stroke-dasharray: 8 10;
}

.page-features .path__dot {
  fill: color-mix(in srgb, var(--color-contrast-accent) 22%, transparent);
  stroke: var(--color-contrast-accent);
  stroke-width: 3;
  transition: fill 180ms ease;
}

.page-features .path__node {
  cursor: default;
}

.page-features .path__node:hover .path__dot,
.page-features .path__node:focus .path__dot {
  fill: color-mix(in srgb, var(--color-contrast-accent) 55%, transparent);
}

.page-features .path__node:focus-visible {
  outline: none;
}

.page-features .path__label {
  fill: var(--color-contrast-ink);
  font-family: var(--font-heading);
  font-size: var(--text-base);
}

.page-features .path__pop {
  fill: var(--color-contrast-accent);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  opacity: 0;
  transition: opacity 180ms ease;
}

.page-features .path__node:hover .path__pop,
.page-features .path__node:focus .path__pop {
  opacity: 1;
}

.page-features .path__hint {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

/* ---------- 下一步 ---------- */
.page-features .next {
  padding-block: var(--section-y);
}

.page-features .next__grid {
  gap: var(--space-3);
}

.page-features .next-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: border-color 180ms ease, transform 180ms ease;
}

.page-features .next-card:hover,
.page-features .next-card:focus-visible {
  border-color: var(--color-primary);
  transform: translateY(-3px);
}

.page-features .next-card__idx {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-accent);
}

.page-features .next-card__title {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  color: var(--color-ink);
}

.page-features .next-card__body {
  flex: 1;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-features .next-card__go {
  font-size: var(--text-sm);
  color: var(--color-primary);
  border-bottom: var(--border-thin) solid var(--color-primary);
  align-self: flex-start;
}

.page-features .next__contact {
  margin-top: var(--space-6);
  padding: var(--space-3) var(--space-4);
  border: var(--border-thin) solid var(--color-line);
  border-left: calc(var(--border-thin) * 3) solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--color-surface-alt);
}

.page-features .next__contact p {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-features .next__contact a {
  color: var(--color-primary);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-features .feat-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-features .roster__item {
    grid-template-columns: auto 1fr auto;
  }

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

@media (min-width: 1024px) {
  .page-features .feat-hero {
    padding-block: calc(var(--space-8) * 1.5) calc(var(--space-8) * 1.25);
  }

  .page-features .cap__head {
    grid-template-columns: auto 1fr;
    gap: var(--space-4);
    align-items: start;
  }

  .page-features .cap__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-features .cap--flip .cap__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .page-features .cap--flip .cap__figure {
    order: -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-features .feat-badge,
  .page-features .pain__note,
  .page-features .next-card,
  .page-features .path__dot,
  .page-features .path__pop,
  .page-features .cap__head {
    transition-duration: 1ms;
  }

  .page-features .feat-badge:hover,
  .page-features .next-card:hover {
    transform: none;
  }
}
<<<END>>>