.page-custom-steps {
  display: block;
  background: var(--color-surface);
  color: var(--color-ink);
}

/* ---------- 首屏 ---------- */

.page-custom-steps .cs-hero {
  position: relative;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-top: calc(var(--section-y) * 0.8);
  padding-bottom: calc(var(--section-y) + 78px);
  overflow: hidden;
}

.page-custom-steps .cs-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -10%;
  width: 52%;
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at 40% 40%, color-mix(in srgb, var(--color-primary) 62%, transparent), transparent 68%);
  opacity: .55;
  pointer-events: none;
}

.page-custom-steps .cs-hero .container {
  position: relative;
  z-index: 2;
}

.page-custom-steps .cs-hero__crumb {
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
}

.page-custom-steps .cs-hero__crumb a {
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent);
  text-decoration: none;
}

.page-custom-steps .cs-hero__crumb a:hover,
.page-custom-steps .cs-hero__crumb a:focus-visible {
  color: var(--color-contrast-accent);
}

.page-custom-steps .cs-hero__crumb span[aria-current="page"] {
  color: var(--color-contrast-ink);
  font-weight: 700;
}

.page-custom-steps .cs-hero__grid {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

.page-custom-steps .cs-hero__eyebrow {
  display: inline-block;
  padding: 6px 12px;
  background: var(--color-primary);
  color: var(--color-primary-ink);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: .2em;
}

.page-custom-steps .cs-hero__title {
  margin: var(--space-3) 0 0;
  font-family: var(--font-heading);
  font-size: clamp(var(--text-2xl), 6.6vw, var(--text-3xl));
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  text-wrap: balance;
}

.page-custom-steps .cs-hero__lede {
  margin: var(--space-3) 0 0;
  max-width: 58ch;
  color: color-mix(in srgb, var(--color-contrast-ink) 84%, transparent);
}

/* 图片容器 */

.page-custom-steps .cs-figure {
  margin: 0;
  border: var(--border-thick) solid var(--color-contrast-line);
  background: var(--color-contrast-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-2);
}

.page-custom-steps .cs-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-custom-steps .cs-figure__cap {
  display: block;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface-deep);
  color: var(--color-ink-muted);
  font-size: var(--text-xs);
  letter-spacing: .04em;
  line-height: 1.5;
}

.page-custom-steps .cs-hero__figure {
  border-color: var(--color-contrast-line);
  background: var(--color-contrast-surface);
  transform: rotate(-.7deg);
  max-width: 100%;
}

.page-custom-steps .cs-hero__figure .cs-figure__cap {
  background: color-mix(in srgb, var(--color-contrast-surface) 82%, var(--color-contrast-ink));
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

/* 流程总览轨道 */

.page-custom-steps .cs-track-wrap {
  position: relative;
  z-index: 2;
  margin-top: var(--space-8);
  padding: var(--space-4);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-contrast-ink) 6%, transparent);
}

.page-custom-steps .cs-track-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-3);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-custom-steps .cs-track-head__label {
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: .22em;
}

.page-custom-steps .cs-track-head__hint {
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
  font-size: var(--text-xs);
  letter-spacing: .06em;
}

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

.page-custom-steps .cs-track__link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: color-mix(in srgb, var(--color-surface) 7%, transparent);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  color: var(--color-contrast-ink);
  text-decoration: none;
  transition: background .25s ease, border-color .25s ease, transform .25s ease;
}

.page-custom-steps .cs-track__link:hover,
.page-custom-steps .cs-track__link:focus-visible {
  background: color-mix(in srgb, var(--color-primary) 20%, transparent);
  border-color: var(--color-primary);
  transform: translateX(4px);
}

.page-custom-steps .cs-track__num {
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -.03em;
}

.page-custom-steps .cs-track__name {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-custom-steps .cs-track__pace {
  font-size: var(--text-xs);
  letter-spacing: .08em;
  white-space: nowrap;
  color: color-mix(in srgb, var(--color-contrast-ink) 60%, transparent);
}

/* 底部斜切 */

.page-custom-steps .cs-hero__cut {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 78px;
  background: var(--color-surface);
  clip-path: polygon(0 46%, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

/* ---------- 分组条 ---------- */

.page-custom-steps .cs-band {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thick) solid var(--color-ink);
}

.page-custom-steps .cs-band--split {
  margin-top: var(--space-8);
}

.page-custom-steps .cs-band__label {
  position: relative;
  padding-left: var(--space-4);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
}

.page-custom-steps .cs-band__label::before {
  content: "";
  position: absolute;
  left: 0;
  top: .18em;
  bottom: .18em;
  width: var(--space-1);
  background: var(--color-primary);
  transform: skewX(-14deg);
}

.page-custom-steps .cs-band__note {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 阶段面板 ---------- */

.page-custom-steps .cs-phase {
  --cs-tone: var(--color-primary);
  position: relative;
  margin-top: var(--space-6);
  padding: var(--space-4);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-left: var(--border-thick) solid var(--cs-tone);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}

.page-custom-steps .cs-phase--cool {
  --cs-tone: var(--color-accent);
}

.page-custom-steps .cs-phase--dark {
  --cs-tone: var(--color-contrast-accent);
  background: var(--color-contrast-surface);
  border-color: var(--color-contrast-line);
  border-left-color: var(--cs-tone);
  color: var(--color-contrast-ink);
}

.page-custom-steps .cs-phase__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  align-items: start;
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-4);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-custom-steps .cs-phase--dark .cs-phase__head {
  border-color: var(--color-contrast-line);
}

.page-custom-steps .cs-phase__num {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--cs-tone);
}

.page-custom-steps .cs-phase__step {
  display: block;
  color: var(--cs-tone);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: .16em;
}

.page-custom-steps .cs-phase__title {
  margin: var(--space-1) 0 0;
  font-family: var(--font-heading);
  font-size: clamp(var(--text-lg), 3.6vw, var(--text-xl));
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-custom-steps .cs-phase--dark .cs-phase__title {
  color: var(--color-contrast-ink);
}

.page-custom-steps .cs-phase__body {
  max-width: var(--measure);
  margin: 0 0 var(--space-4);
  color: var(--color-ink-soft);
  line-height: var(--leading-body);
}

.page-custom-steps .cs-phase--dark .cs-phase__body {
  color: color-mix(in srgb, var(--color-contrast-ink) 84%, transparent);
}

/* 输入 / 产出 / 角色 */

.page-custom-steps .cs-fields {
  margin: 0 0 var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-custom-steps .cs-phase--dark .cs-fields {
  border-color: var(--color-contrast-line);
}

.page-custom-steps .cs-fields__row {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-custom-steps .cs-phase--dark .cs-fields__row {
  border-color: var(--color-contrast-line);
}

.page-custom-steps .cs-fields__key {
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--cs-tone);
}

.page-custom-steps .cs-fields__val {
  margin: 0;
  color: var(--color-ink);
  line-height: var(--leading-body);
}

.page-custom-steps .cs-phase--dark .cs-fields__val {
  color: var(--color-contrast-ink);
}

/* 要点列表 */

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

.page-custom-steps .cs-points li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.66;
  color: var(--color-ink-soft);
}

.page-custom-steps .cs-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 8px;
  background: var(--cs-tone);
  transform: rotate(45deg);
}

.page-custom-steps .cs-phase--dark .cs-points li {
  color: color-mix(in srgb, var(--color-contrast-ink) 80%, transparent);
}

/* 阶段配图 */

.page-custom-steps .cs-phase__figure {
  margin: 0 0 var(--space-4);
  border-color: var(--color-line);
  background: var(--color-surface-alt);
  border-radius: var(--radius-sm);
  box-shadow: none;
}

/* 折叠自查 */

.page-custom-steps .cs-fold {
  margin-top: var(--space-4);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}

.page-custom-steps .cs-fold__summary {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: .04em;
  cursor: pointer;
  list-style: none;
}

.page-custom-steps .cs-fold__summary::-webkit-details-marker {
  display: none;
}

.page-custom-steps .cs-fold__summary::before {
  content: "";
  flex: none;
  width: 0;
  height: 0;
  border-left: 7px solid var(--cs-tone);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  transition: transform .2s ease;
}

.page-custom-steps .cs-fold[open] .cs-fold__summary::before {
  transform: rotate(90deg);
}

.page-custom-steps .cs-fold__summary:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: -3px;
}

.page-custom-steps .cs-fold .cs-points {
  padding: 0 var(--space-4) var(--space-4);
}

/* ---------- 结尾出口 ---------- */

.page-custom-steps .cs-outro__panel {
  position: relative;
  padding: var(--space-6) var(--space-4);
  background: var(--color-primary-soft);
  border: var(--border-thick) solid var(--color-ink);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
}

.page-custom-steps .cs-outro__eyebrow {
  display: inline-block;
  padding: 5px 11px;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: .2em;
}

.page-custom-steps .cs-outro__title {
  margin: var(--space-3) 0 0;
  font-family: var(--font-heading);
  font-size: clamp(var(--text-xl), 5vw, var(--text-2xl));
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-custom-steps .cs-outro__body {
  max-width: var(--measure);
  margin: var(--space-3) 0 0;
  color: var(--color-ink-soft);
  line-height: var(--leading-body);
}

.page-custom-steps .cs-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-custom-steps .cs-outro__aside {
  margin: var(--space-4) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid color-mix(in srgb, var(--color-ink) 24%, transparent);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-custom-steps .cs-phase {
    padding: var(--space-6);
  }

  .page-custom-steps .cs-fields__row {
    grid-template-columns: minmax(120px, 172px) 1fr;
    gap: var(--space-4);
    align-items: baseline;
  }

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

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

  .page-custom-steps .cs-outro__panel {
    padding: var(--space-8) var(--space-6);
  }
}

@media (min-width: 900px) {
  .page-custom-steps .cs-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: var(--space-8);
  }

  .page-custom-steps .cs-track {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-custom-steps .cs-track__link {
    grid-template-columns: 1fr;
    justify-items: start;
    gap: var(--space-1);
    padding: var(--space-3) 0 0;
    background: none;
    border: 0;
    border-top: var(--border-thick) solid var(--color-contrast-line);
    border-radius: 0;
  }

  .page-custom-steps .cs-track__link:hover,
  .page-custom-steps .cs-track__link:focus-visible {
    background: none;
    border-top-color: var(--color-primary);
    transform: translateY(-3px);
  }

  .page-custom-steps .cs-track__pace {
    white-space: normal;
  }

  .page-custom-steps .cs-phase__figure {
    max-width: 62%;
  }
}

@media (min-width: 1200px) {
  .page-custom-steps .cs-phase {
    padding: var(--space-6) var(--space-8);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-custom-steps .cs-track__link,
  .page-custom-steps .cs-fold__summary::before {
    transition: none;
  }

  .page-custom-steps .cs-hero__figure {
    transform: none;
  }
}