/* ===== 帮助中心：五站旅程 ===== */
.page-faq {
  --faq-stop-col: 148px;
  --faq-deep-grad: linear-gradient(148deg,
      var(--color-contrast-surface) 0%,
      color-mix(in srgb, var(--color-contrast-surface) 62%, var(--color-contrast-accent)) 100%);
  --faq-soft-grad: linear-gradient(135deg,
      var(--color-primary-soft) 0%,
      color-mix(in srgb, var(--color-highlight) 78%, var(--color-surface)) 52%,
      var(--color-surface) 100%);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: var(--space-4) var(--space-8);
  background-color: var(--color-surface);
  background-image:
    radial-gradient(80% 70% at 88% 2%, color-mix(in srgb, var(--color-primary-soft) 92%, transparent) 0%, transparent 62%),
    radial-gradient(68% 58% at 2% 8%, color-mix(in srgb, var(--color-highlight) 76%, transparent) 0%, transparent 58%);
  border-bottom: calc(var(--border-thin) * 3) solid var(--color-line);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  align-items: center;
  margin-top: var(--space-4);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-primary);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  overflow-wrap: break-word;
}

.page-faq .faq-hero__lead-text {
  margin: var(--space-3) 0 0;
  max-width: 52ch;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-6);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: calc(var(--border-thin) * 3) solid var(--color-line);
}

.page-faq .faq-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero__label {
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-ink-muted);
  max-width: 22ch;
}

.page-faq .faq-hero__stat--note {
  flex: 1 1 220px;
  justify-content: flex-end;
  border-left: calc(var(--border-thin) * 3) solid var(--color-accent);
  padding-left: var(--space-3);
}

.page-faq .faq-hero__note {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-faq .faq-hero__media {
  margin: var(--space-8) 0 0;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-deep);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

/* ---------- 纯 CSS 时间轴 ---------- */
.page-faq .faq-axis {
  position: relative;
  isolate: isolate;
  padding: var(--space-6) var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--faq-deep-grad);
  box-shadow: var(--shadow-2);
  color: var(--color-contrast-ink);
  overflow: hidden;
}

.page-faq .faq-axis::before {
  content: "";
  position: absolute;
  top: -46%;
  right: -26%;
  width: 72%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--color-primary) 58%, transparent) 0%, transparent 68%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-axis__caption {
  position: relative;
  z-index: 1;
  margin: 0 0 var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.page-faq .faq-axis__list {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-axis__list::before {
  content: "";
  position: absolute;
  left: 10%;
  right: 10%;
  top: 11px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg,
      var(--color-primary) 0%,
      var(--color-contrast-accent) 55%,
      var(--color-accent) 100%);
  opacity: 0.8;
}

.page-faq .faq-axis__node {
  position: relative;
  min-width: 0;
}

.page-faq .faq-axis__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius-sm);
  padding: var(--space-1) 2px;
}

.page-faq .faq-axis__dot {
  position: relative;
  z-index: 1;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-primary) 32%, transparent);
  transition: transform 240ms ease;
}

.page-faq .faq-axis__node:nth-child(even) .faq-axis__dot {
  background: var(--color-contrast-accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-contrast-accent) 36%, transparent);
}

.page-faq .faq-axis__num {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent);
}

.page-faq .faq-axis__name {
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  line-height: 1.35;
  color: var(--color-contrast-ink);
}

.page-faq .faq-axis__who {
  font-size: var(--text-xs);
  line-height: 1.45;
  color: color-mix(in srgb, var(--color-contrast-ink) 54%, transparent);
}

.page-faq .faq-axis__link:hover .faq-axis__dot,
.page-faq .faq-axis__link:focus-visible .faq-axis__dot {
  transform: scale(1.14);
}

/* ---------- 站点纵向推进 ---------- */
.page-faq .faq-stops {
  background: var(--color-surface);
}

.page-faq .faq-stop {
  position: relative;
  padding-block: var(--section-y);
  border-top: calc(var(--border-thin) * 3) solid var(--color-line);
}

.page-faq .faq-stop::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 0;
  right: 0;
  height: var(--border-thin);
  background: var(--color-line);
}

.page-faq .faq-stop__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

.page-faq .faq-stop__badge {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
}

.page-faq .faq-stop__ord {
  font-size: var(--text-4xl);
  font-weight: var(--weight-heading);
  line-height: 0.86;
  letter-spacing: -0.04em;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-stop:nth-child(even) .faq-stop__ord {
  color: var(--color-accent);
}

.page-faq .faq-stop__tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: var(--weight-heading);
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.page-faq .faq-stop:nth-child(even) .faq-stop__tag {
  background: var(--color-highlight);
  color: var(--color-accent);
}

.page-faq .faq-stop__body {
  min-width: 0;
}

.page-faq .faq-stop__title {
  margin: 0 0 var(--space-3);
  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-ink);
}

.page-faq .faq-stop__facts {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin: 0 0 var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  border-left: calc(var(--border-thin) * 3) solid var(--color-accent);
}

.page-faq .faq-stop__fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-faq .faq-stop__fact dt {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-faq .faq-stop__fact dd {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink);
}

.page-faq .faq-stop__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);
}

.page-faq .faq-stop__body > p strong {
  font-weight: var(--weight-heading);
  color: var(--color-primary);
}

.page-faq .faq-stop__body a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
}

.page-faq .faq-stop__body a:hover {
  color: var(--color-primary);
}

.page-faq .faq-stop__points {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.page-faq .faq-stop__points > .term {
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
  padding: var(--space-2) var(--space-3);
}

/* ---------- 区块内配图 ---------- */
.page-faq .faq-figure {
  margin: var(--space-4) 0;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-deep);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: calc(var(--radius-md) - 4px);
}

.page-faq .faq-figure figcaption {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.65;
  color: var(--color-ink-muted);
}

/* ---------- 收束 ---------- */
.page-faq .faq-closing {
  padding-block: var(--section-y-lg);
  background: var(--color-surface-alt);
  border-top: calc(var(--border-thin) * 3) solid var(--color-line);
}

.page-faq .faq-closing__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  padding: var(--space-6) var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--faq-soft-grad);
  border: var(--border-thin) solid var(--color-line);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-closing__title {
  margin: 0 0 var(--space-3);
  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);
  color: var(--color-ink);
}

.page-faq .faq-closing__lead {
  margin: 0;
  max-width: 46ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-faq .faq-closing__contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin: 0;
  padding: var(--space-4) 0 0;
  border-top: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 28%, transparent);
}

.page-faq .faq-closing__item {
  min-width: 0;
}

.page-faq .faq-closing__item dt {
  margin-bottom: 4px;
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-faq .faq-closing__item dd {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink);
  word-break: break-word;
}

.page-faq .faq-closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.page-faq .faq-closing__actions .btn {
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-stop__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }

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

  .page-faq .faq-closing__item:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-block: var(--space-6) var(--section-y);
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 48fr) minmax(0, 52fr);
    gap: var(--space-8);
    margin-top: var(--space-6);
  }

  .page-faq .faq-hero__stat--note {
    justify-content: flex-start;
  }

  .page-faq .faq-stop {
    padding-block: var(--section-y-lg);
  }

  .page-faq .faq-stop__grid {
    grid-template-columns: var(--faq-stop-col) minmax(0, 1fr);
    gap: var(--space-6);
  }

  .page-faq .faq-stop__badge {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding-top: 6px;
  }

  .page-faq .faq-figure {
    max-width: 620px;
  }

  .page-faq .faq-closing__panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-6) var(--space-8);
    padding: var(--space-8) var(--space-6);
  }

  .page-faq .faq-closing__text {
    grid-row: 1 / span 2;
  }

  .page-faq .faq-closing__contact {
    padding-top: 0;
    border-top: none;
  }
}

@media (max-width: 479px) {
  .page-faq .faq-axis {
    padding: var(--space-4) var(--space-2);
  }

  .page-faq .faq-axis__name,
  .page-faq .faq-axis__who,
  .page-faq .faq-axis__num {
    font-size: var(--text-xs);
  }

  .page-faq .faq-axis__list {
    gap: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-axis__dot {
    transition: none;
  }

  .page-faq .faq-axis__link:hover .faq-axis__dot,
  .page-faq .faq-axis__link:focus-visible .faq-axis__dot {
    transform: none;
  }
}