.page-custom {
  --custom-shift: clamp(40px, 7vw, 96px);
  --custom-route-line: calc(var(--space-3) + 14px);
}

/* ============ 首屏 ============ */
.page-custom .hero-custom {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: calc(var(--section-y) + 72px) var(--section-y);
  background: var(--color-surface);
}

.page-custom .hero-shape {
  position: absolute;
  display: block;
  pointer-events: none;
  z-index: 0;
  border-radius: var(--radius-lg);
}

.page-custom .hero-shape--a {
  top: -14%;
  right: -22%;
  width: 78%;
  height: 76%;
  transform: rotate(-9deg);
  background: linear-gradient(148deg,
    color-mix(in srgb, var(--color-primary) 62%, transparent) 0%,
    color-mix(in srgb, var(--color-primary) 22%, transparent) 52%,
    transparent 100%);
  opacity: 0.34;
}

.page-custom .hero-shape--b {
  bottom: -26%;
  left: -18%;
  width: 58%;
  height: 58%;
  transform: rotate(7deg);
  background: linear-gradient(24deg,
    color-mix(in srgb, var(--color-accent) 46%, transparent) 0%,
    transparent 72%);
  opacity: 0.18;
}

.page-custom .hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-6);
}

.page-custom .hero-copy h1 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.02;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  max-width: 15ch;
}

.page-custom .hero-copy .lead {
  max-width: 46ch;
  margin: 0 0 var(--space-4);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-custom .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.page-custom .hero-aside {
  display: grid;
  gap: var(--space-3);
}

.page-custom .hero-art {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-deep);
}

.page-custom .hero-art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.55) contrast(1.06);
}

.page-custom .hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(205deg,
    color-mix(in srgb, var(--color-primary) 52%, transparent) 0%,
    transparent 62%);
}

.page-custom .hero-art .media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: var(--space-3);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-ink-soft);
  background: linear-gradient(180deg, transparent 0%, color-mix(in srgb, var(--color-surface) 92%, transparent) 100%);
}

.page-custom .hero-figures {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
}

.page-custom .hero-figure {
  padding: var(--space-2) var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  border: var(--border-thin) solid var(--color-line);
  border-bottom-color: var(--color-primary);
  background: color-mix(in srgb, var(--color-surface-deep) 62%, transparent);
}

.page-custom .hero-figure .figure-num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-ink);
  text-shadow: 0 0 26px color-mix(in srgb, var(--color-primary) 42%, transparent);
}

.page-custom .hero-figure .figure-num--accent {
  color: var(--color-accent);
  text-shadow: 0 0 26px color-mix(in srgb, var(--color-accent) 46%, transparent);
}

.page-custom .hero-figure .figure-caption {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.4;
  color: var(--color-ink-muted);
}

/* ============ 路线图 ============ */
.page-custom .route-map {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: var(--space-8) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.page-custom .route-node {
  position: relative;
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-line);
  background: color-mix(in srgb, var(--color-surface-alt) 86%, transparent);
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

.page-custom .route-node:hover,
.page-custom .route-node:focus-within {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-2);
}

.page-custom .route-num {
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-primary);
  text-shadow: 0 0 24px color-mix(in srgb, var(--color-primary) 58%, transparent);
}

.page-custom .route-name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-custom .route-out {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

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

.page-custom .section-head h2 {
  margin: var(--space-1) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

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

/* ============ 三种处境 ============ */
.page-custom .situation-grid {
  display: grid;
  gap: var(--space-4);
}

.page-custom .situation {
  padding: var(--space-4) var(--space-3) var(--space-4) 0;
  border-top: var(--border-thick) solid var(--color-primary);
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--color-surface-deep) 52%, transparent) 0%,
    transparent 100%);
}

.page-custom .situation-mark {
  display: inline-block;
  margin-bottom: var(--space-2);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: var(--border-thin) solid var(--color-line);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-custom .situation h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1.32;
  color: var(--color-ink);
}

.page-custom .situation p {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ============ 四步流程 ============ */
.page-custom .flow-banner {
  margin: 0 0 var(--space-6);
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
}

.page-custom .flow-banner img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 5;
  filter: saturate(0.45) brightness(0.86);
}

.page-custom .flow-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
}

.page-custom .flow-step {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  padding-left: var(--space-3);
  border-left: var(--border-thin) solid var(--color-line);
}

.page-custom .flow-step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 12px;
  width: 9px;
  height: 9px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  box-shadow: 0 0 16px color-mix(in srgb, var(--color-primary) 70%, transparent);
}

.page-custom .flow-num {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-accent);
}

.page-custom .flow-body h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

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

.page-custom .flow-detail {
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-surface-alt) 68%, transparent);
}

.page-custom .flow-detail summary {
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
  cursor: pointer;
  list-style: none;
}

.page-custom .flow-detail summary::-webkit-details-marker {
  display: none;
}

.page-custom .flow-detail summary::after {
  content: " +";
  color: var(--color-accent);
}

.page-custom .flow-detail[open] summary::after {
  content: " −";
}

.page-custom .flow-detail ul {
  margin: 0;
  padding: 0 var(--space-3) var(--space-3);
  list-style: none;
  display: grid;
  gap: var(--space-1);
}

.page-custom .flow-detail li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-custom .flow-detail li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 1px;
  background: var(--color-accent);
}

/* ============ 客场胜率示例 ============ */
.page-custom .away-layout {
  display: grid;
  gap: var(--space-6);
}

.page-custom .away-copy h2 {
  margin: var(--space-1) 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

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

.page-custom .away-facts {
  margin: var(--space-4) 0 0;
  display: grid;
  gap: var(--space-2);
}

.page-custom .away-facts > div {
  display: grid;
  grid-template-columns: minmax(96px, auto) 1fr;
  gap: var(--space-2);
  align-items: baseline;
  padding-block: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-custom .away-facts dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

.page-custom .away-facts dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink);
}

.page-custom .away-art {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
}

.page-custom .away-art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.5) contrast(1.05);
}

.page-custom .away-art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(160deg,
    color-mix(in srgb, var(--color-accent) 24%, transparent) 0%,
    transparent 58%);
}

/* ============ 六类场景 ============ */
.page-custom .scene-section {
  position: relative;
  overflow: hidden;
  background: var(--color-surface);
}

.page-custom .scene-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-custom .scene-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.14;
  filter: saturate(0.3) blur(1px);
}

.page-custom .scene-inner {
  position: relative;
  z-index: 1;
}

.page-custom .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.page-custom .filter-btn {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  border: var(--border-thin) solid var(--color-line);
  background: transparent;
  color: var(--color-ink-muted);
  cursor: pointer;
  transition: border-color 160ms ease, color 160ms ease, background 160ms ease;
}

.page-custom .filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-ink);
}

.page-custom .filter-btn[aria-pressed="true"] {
  border-color: var(--color-accent);
  background: var(--color-highlight);
  color: var(--color-accent);
}

.page-custom .scene-grid {
  display: grid;
  gap: var(--space-3);
  align-items: start;
}

.page-custom .scene-card {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-3);
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-line);
  background: color-mix(in srgb, var(--color-surface-deep) 74%, transparent);
  transition: border-color 200ms ease, box-shadow 200ms ease, transform 200ms ease;
}

.page-custom .scene-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-2);
  transform: translateY(-4px);
}

.page-custom .scene-index {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-primary);
}

.page-custom .scene-card h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1.3;
  color: var(--color-ink);
}

.page-custom .scene-card dl {
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.page-custom .scene-card dl > dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-custom .scene-card dl > dd {
  margin: calc(var(--space-1) * -1 + 2px) 0 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-custom .scene-card dl > dd:last-child {
  color: var(--color-ink);
}

.page-custom .scene-foot {
  margin: var(--space-6) 0 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ============ 时间预期（强对比） ============ */
.page-custom .section--contrast .section-head h2,
.page-custom .section--contrast .section-head .eyebrow {
  color: var(--color-contrast-ink);
}

.page-custom .section--contrast .section-head .eyebrow {
  color: var(--color-contrast-accent);
}

.page-custom .expect-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  color: var(--color-contrast-ink);
}

.page-custom .expect-table th,
.page-custom .expect-table td {
  padding: var(--space-3);
  text-align: left;
  vertical-align: top;
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.page-custom .expect-table thead th {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-contrast-accent);
  border-bottom: var(--border-thick) solid var(--color-contrast-accent);
  white-space: nowrap;
}

.page-custom .expect-table tbody th {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-ink);
  white-space: nowrap;
}

.page-custom .expect-note {
  margin: var(--space-4) 0 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-custom .expect-note a {
  color: var(--color-contrast-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============ 结尾入口 ============ */
.page-custom .handoff {
  background: var(--color-surface);
}

.page-custom .handoff-layout {
  display: grid;
  gap: var(--space-6);
}

.page-custom .handoff-art {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
}

.page-custom .handoff-art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.4) brightness(0.82);
}

.page-custom .handoff-copy h2 {
  margin: var(--space-1) 0 var(--space-4);
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  max-width: 20ch;
}

.page-custom .handoff-list {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-custom .handoff-list 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: 1.7;
  color: var(--color-ink);
}

.page-custom .handoff-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.page-custom .handoff-lead {
  margin: 0 0 var(--space-4);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-custom .handoff-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ============ 通用可访问性 ============ */
.page-custom .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-custom a:focus-visible,
.page-custom button:focus-visible,
.page-custom summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

/* ============ 中屏 ============ */
@media (min-width: 720px) {
  .page-custom .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-8);
  }

  .page-custom .situation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4) var(--space-6);
  }

  .page-custom .scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-custom .away-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-custom .away-facts > div {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-1);
  }
}

/* ============ 宽屏 ============ */
@media (min-width: 980px) {
  .page-custom .hero-inner {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-custom .hero-copy {
    padding-top: var(--space-3);
  }

  .page-custom .route-map {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-custom .route-map::before {
    content: "";
    position: absolute;
    top: var(--custom-route-line);
    left: 4%;
    right: 4%;
    height: 1px;
    background: var(--color-line);
  }

  .page-custom .situation-grid {
    grid-template-columns: 1.18fr 0.84fr 1.32fr;
    gap: var(--space-4) var(--space-6);
    align-items: start;
  }

  .page-custom .situation:nth-child(2) {
    margin-top: var(--space-4);
  }

  .page-custom .away-layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-custom .scene-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4) var(--space-3);
  }

  .page-custom .scene-card:nth-child(even) {
    margin-top: var(--space-6);
  }

  .page-custom .handoff-layout {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
    gap: var(--space-8);
    align-items: start;
  }
}

/* ============ 动效降级 ============ */
@media (prefers-reduced-motion: reduce) {
  .page-custom .scene-card:hover {
    transform: none;
  }

  .page-custom .route-node,
  .page-custom .scene-card,
  .page-custom .filter-btn {
    transition: none;
  }
}