.page-faq {
  --faq-card: var(--moss);
  --faq-gap: clamp(1rem, 3vw, 2rem);
}

.page-faq .faq-hero {
  padding-top: clamp(1.5rem, 4vw, 3rem);
  padding-bottom: clamp(2rem, 6vw, 4rem);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 5vw, 3.25rem);
  align-items: start;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-hero__title {
  margin: .55rem 0 0;
  font-size: clamp(1.95rem, 7vw, 3.4rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--chalk);
}

.page-faq .faq-hero__mark {
  font-style: normal;
  color: var(--signal);
  box-shadow: inset 0 -.18em 0 rgba(216, 255, 62, .22);
}

.page-faq .faq-hero__lead {
  margin: 1.1rem 0 0;
  max-width: 46ch;
  font-size: 1.02rem;
  line-height: 1.78;
  color: var(--text);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.6rem;
}

.page-faq .faq-hero__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: .55rem;
  margin: 1.85rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px dashed var(--line-strong);
  padding-top: 1.15rem;
}

.page-faq .faq-hero__fact {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  font-size: .92rem;
  color: var(--text);
}

.page-faq .faq-hero__fact-num {
  min-width: 6.5rem;
  color: var(--signal);
  font-size: .95rem;
  letter-spacing: .02em;
}

.page-faq .faq-hero__fact-txt {
  color: var(--mute);
}

.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--line-strong);
  background: var(--faq-card);
  box-shadow: var(--shadow-print);
  overflow: hidden;
}

.page-faq .faq-hero__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 3;
  max-height: 560px;
  object-fit: cover;
}

/* ---- 三步路线 ---- */
.page-faq .faq-route {
  position: relative;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-route::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
  background: linear-gradient(90deg, var(--signal) 0 26%, var(--electric) 26% 52%, var(--score) 52% 100%);
}

.page-faq .faq-route__steps {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-route__step {
  background: var(--faq-card);
  padding: clamp(1.15rem, 3.5vw, 1.75rem);
}

.page-faq .faq-route__num {
  display: block;
  font-size: clamp(1.8rem, 5vw, 2.4rem);
  line-height: 1;
  color: var(--signal);
  letter-spacing: -.03em;
}

.page-faq .faq-route__title {
  margin: .85rem 0 .5rem;
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--chalk);
}

.page-faq .faq-route__text {
  margin: 0;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .faq-route__media {
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  border: 1px solid var(--line-strong);
  overflow: hidden;
}

.page-faq .faq-route__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ---- 索引 + 手风琴 ---- */
.page-faq .faq-guide {
  padding-top: clamp(2.5rem, 7vw, 4.5rem);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 5vw, 3rem);
  align-items: start;
}

.page-faq .faq-index {
  border: 1px solid var(--line-strong);
  background: var(--faq-card);
  padding: 1.15rem 1.15rem 1.3rem;
}

.page-faq .faq-index__label {
  margin: 0 0 .8rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-faq .anchor-index {
  display: grid;
  gap: .2rem;
  margin: 0 0 1.15rem;
  padding: 0;
}

.page-faq .anchor-index__link {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .55rem .6rem;
  font-size: .95rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .anchor-index__link:hover,
.page-faq .anchor-index__link:focus-visible {
  color: var(--signal);
  border-left-color: var(--signal);
  background: rgba(216, 255, 62, .08);
}

.page-faq .anchor-index__num {
  font-size: .78rem;
  color: var(--electric);
}

.page-faq .faq-index__cta {
  width: 100%;
}

.page-faq .faq-body {
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 5vw, 3rem);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: .8rem;
  padding-bottom: .7rem;
  border-bottom: 2px solid var(--signal);
}

.page-faq .faq-group__num {
  font-size: 1.1rem;
  color: var(--signal);
  letter-spacing: -.02em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.3rem, 4vw, 1.7rem);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--chalk);
}

.page-faq .faq-group__lead {
  margin: .85rem 0 .35rem;
  font-size: .95rem;
  line-height: 1.7;
  color: var(--mute);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
  padding: 1.05rem .2rem;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--text-strong);
  transition: color .2s var(--ease);
}

.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--signal);
}

.page-faq .faq-item[open] summary::after {
  content: "\2212";
}

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--signal);
}

.page-faq .faq-item[open] summary {
  color: var(--signal);
}

.page-faq .faq-item__body {
  padding: 0 .2rem 1.25rem 1.1rem;
  border-left: 2px solid rgba(216, 255, 62, .35);
  margin-left: .1rem;
}

.page-faq .faq-item__body p {
  margin: 0 0 .7rem;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}

/* ---- 人工帮助 ---- */
.page-faq .faq-support {
  padding-top: clamp(2.5rem, 7vw, 4rem);
  padding-bottom: clamp(2.5rem, 7vw, 4rem);
}

.page-faq .faq-support__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
}

.page-faq .faq-support__card {
  background: var(--paper);
  color: var(--ink-text);
  padding: clamp(1.15rem, 3.5vw, 1.7rem);
}

.page-faq .faq-support__card--signal {
  background: var(--signal);
  color: #10230E;
}

.page-faq .faq-support__label {
  margin: 0 0 .55rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #6E7C74;
}

.page-faq .faq-support__card--signal .faq-support__label {
  color: rgba(16, 35, 14, .62);
}

.page-faq .faq-support__value {
  margin: 0 0 .7rem;
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.45;
  color: #14211A;
  word-break: break-word;
}

.page-faq .faq-support__card--signal .faq-support__value {
  color: #10230E;
}

.page-faq .faq-support__value a {
  color: inherit;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-faq .faq-support__note {
  margin: 0 0 1rem;
  font-size: .9rem;
  line-height: 1.72;
  color: #4A5952;
}

.page-faq .faq-support__card--signal .faq-support__note {
  color: rgba(16, 35, 14, .78);
}

.page-faq .faq-support__card .btn {
  margin-top: .15rem;
}

.page-faq .faq-support__foot {
  margin: 1.6rem 0 0;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .faq-support__foot a {
  color: var(--electric);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-support__top {
  margin-top: 1.5rem;
}

@media (min-width: 640px) {
  .page-faq .faq-support__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-support__card--signal {
    grid-column: 1 / -1;
  }

  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-faq .faq-hero__fact {
    flex-direction: column;
    gap: .3rem;
  }

  .page-faq .faq-hero__fact-num {
    min-width: 0;
  }
}

@media (min-width: 820px) {
  .page-faq .faq-route__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }

  .page-faq .faq-hero__media .media__img {
    max-height: 620px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 7.5rem;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-support__card--signal {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .anchor-index__link,
  .page-faq .faq-item summary {
    transition: none;
  }
}