.page-faq {
  --faq-rail-w: 88px;
  --faq-sticky: 92px;
  background: var(--night);
  color: var(--mist);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  padding: 20px 0 0;
}
.page-faq .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--stone);
}
.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--moss);
}
.page-faq .breadcrumbs__item a {
  color: var(--stone-2);
  text-decoration: none;
}
.page-faq .breadcrumbs__item a:hover {
  color: var(--cyan);
}
.page-faq .breadcrumbs__item[aria-current="page"] {
  color: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 32px 0 44px;
  border-bottom: 1px solid var(--moss);
  position: relative;
  overflow: hidden;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  top: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(63, 240, 200, 0.14), transparent 68%);
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 44px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 14px 0 0;
  max-width: 16ch;
}
.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 36ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}
.page-faq .faq-hero__media {
  margin: 0;
}
.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--r-card);
  object-fit: cover;
  filter: saturate(0.85);
}

/* ---------- 主布局 ---------- */
.page-faq .faq-main {
  padding: 52px 0 8px;
}
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

/* ---------- 分类轴 ---------- */
.page-faq .faq-rail {
  position: sticky;
  top: var(--faq-sticky);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.page-faq .faq-rail__label {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
  padding: 0 0 10px 12px;
}
.page-faq .faq-rail__link {
  display: block;
  padding: 10px 6px 10px 12px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--stone-2);
  text-decoration: none;
  border-left: 2px solid var(--moss);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin: 0 0 40px;
  scroll-margin-top: 100px;
}
.page-faq .faq-group:last-child {
  margin-bottom: 0;
}
.page-faq .faq-group__title {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0 0 14px;
  padding-left: 2px;
}
.page-faq .faq-item + .faq-item {
  margin-top: 12px;
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  position: relative;
  display: block;
  background: var(--court);
  border: 1px solid var(--moss);
  border-radius: var(--r-soft);
  overflow: hidden;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform var(--dur) var(--ease);
}
.page-faq .faq-item[open] {
  background: var(--paper);
  border-color: var(--paper);
  box-shadow: var(--shadow-deep);
}
.page-faq .faq-item[open]::before {
  transform: scaleY(1);
}

.page-faq .faq-summary {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 18px 22px 18px 24px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}
.page-faq .faq-summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-summary::marker {
  content: "";
}
.page-faq .faq-summary:hover {
  color: var(--cyan);
}
.page-faq .faq-summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}
.page-faq .faq-summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-data);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-faq .faq-item[open] .faq-summary {
  color: var(--graphite);
}
.page-faq .faq-item[open] .faq-summary::after {
  content: "–";
  color: var(--clay);
  transform: rotate(180deg);
}

.page-faq .faq-panel {
  padding: 0 22px 22px 24px;
  color: var(--graphite);
  font-size: 15px;
  line-height: 1.8;
}
.page-faq .faq-panel > p:first-child {
  margin-top: 0;
}
.page-faq .faq-panel > p {
  margin: 0 0 16px;
}

/* ---------- 步骤清单 ---------- */
.page-faq .faq-steps {
  counter-reset: faq-step;
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq .faq-steps li {
  counter-increment: faq-step;
  position: relative;
  padding-left: 42px;
  line-height: 1.75;
}
.page-faq .faq-steps li::before {
  content: counter(faq-step);
  position: absolute;
  left: 0;
  top: 3px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--moss);
  color: var(--cyan);
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-faq .faq-item[open] .faq-steps li::before {
  background: var(--night);
  color: var(--cyan);
}

.page-faq .faq-note {
  margin: 0;
  padding: 12px 16px;
  border-left: 3px solid var(--amber);
  background: rgba(255, 138, 61, 0.1);
  border-radius: 0 var(--r-soft) var(--r-soft) 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--graphite);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 18px 0 0;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--r-soft);
  object-fit: cover;
  filter: saturate(0.85);
}

/* ---------- 偏好速查表 ---------- */
.page-faq .faq-prefs {
  margin: 0;
}
.page-faq .faq-prefs > div {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(18, 33, 28, 0.14);
}
.page-faq .faq-prefs > div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-faq .faq-prefs dt {
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--clay);
  padding-top: 4px;
}
.page-faq .faq-prefs dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--graphite);
}

/* ---------- 提交清单卡片 ---------- */
.page-faq .faq-contact-card {
  margin-top: 24px;
  padding: 56px 0 60px;
  background: var(--court);
  border-top: 1px solid var(--moss);
  border-bottom: 1px solid var(--moss);
}
.page-faq .faq-contact-card__inner {
  max-width: 760px;
}
.page-faq .faq-contact-card h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 32px);
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0 0 12px;
}
.page-faq .faq-contact-card__lede {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}
.page-faq .faq-checklist {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq .faq-checklist li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}
.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--cyan);
}
.page-faq .faq-contact-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-faq .faq-contact-card__note {
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--stone-2);
  max-width: 52ch;
}

/* ---------- 尾部橙色横条 ---------- */
.page-faq .faq-cta {
  background: var(--amber);
  padding: 40px 0;
}
.page-faq .faq-cta__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 32px;
  align-items: center;
  justify-content: space-between;
}
.page-faq .faq-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 30px);
  letter-spacing: -0.01em;
  color: var(--night);
  margin: 0 0 8px;
}
.page-faq .faq-cta p {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--night);
}
.page-faq .faq-cta .btn {
  flex: 0 0 auto;
  background: var(--night);
  border-color: var(--night);
  color: var(--paper);
}
.page-faq .faq-cta .btn:hover,
.page-faq .faq-cta .btn:focus-visible {
  background: var(--court);
  border-color: var(--court);
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .page-faq .faq-hero {
    padding: 24px 0 36px;
  }
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }
  .page-faq .faq-hero h1 {
    max-width: none;
  }
  .page-faq .faq-hero__lede {
    max-width: none;
  }

  .page-faq .faq-main {
    padding-top: 0;
  }
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }
  .page-faq .faq-rail {
    position: sticky;
    top: 0;
    z-index: 6;
    flex-direction: row;
    gap: 8px;
    overflow-x: auto;
    padding: 14px 0;
    margin-bottom: 24px;
    background: var(--night);
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .page-faq .faq-rail::-webkit-scrollbar {
    display: none;
  }
  .page-faq .faq-rail__label {
    display: none;
  }
  .page-faq .faq-rail__link {
    flex: 0 0 auto;
    white-space: nowrap;
    padding: 8px 14px;
    border-left: 0;
    border: 1px solid var(--moss);
    border-radius: var(--r-pill);
  }
  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-color: var(--cyan);
  }

  .page-faq .faq-group {
    scroll-margin-top: 72px;
    margin-bottom: 32px;
  }
  .page-faq .faq-summary {
    padding: 16px 16px 16px 18px;
    font-size: 15px;
  }
  .page-faq .faq-panel {
    padding: 0 16px 18px 18px;
    font-size: 14.5px;
  }
  .page-faq .faq-steps li {
    padding-left: 36px;
  }
  .page-faq .faq-prefs > div {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
  .page-faq .faq-prefs dt {
    padding-top: 0;
  }

  .page-faq .faq-contact-card {
    padding: 40px 0 44px;
  }
  .page-faq .faq-cta {
    padding: 32px 0;
  }
  .page-faq .faq-cta__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-hero h1 {
    font-size: 28px;
  }
  .page-faq .faq-contact-card__actions {
    flex-direction: column;
    align-items: stretch;
  }
  .page-faq .faq-contact-card__actions .btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item::before,
  .page-faq .faq-summary,
  .page-faq .faq-summary::after,
  .page-faq .faq-steps li::before,
  .page-faq .faq-rail__link {
    transition: none;
  }
  .page-faq .faq-item[open] .faq-summary::after {
    transform: none;
  }
}