.page-faq {
  --faq-line: #D7E2EB;
  --faq-gap: clamp(20px, 3vw, 36px);
  padding-bottom: clamp(40px, 7vw, 88px);
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: 18px;
  padding: clamp(24px, 4vw, 56px);
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius-l);
}

.page-faq .faq-hero__kicker {
  display: inline-block;
  margin: 0 0 16px;
  padding: 5px 12px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--teal-soft);
  border: 1px solid rgba(168, 229, 220, 0.35);
  border-radius: 999px;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 50px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--on-dark);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  margin-top: 26px;
}

.page-faq .faq-hero__jump {
  font-size: 14px;
  font-weight: 600;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 177, 90, 0.55);
  padding-bottom: 2px;
}

.page-faq .faq-hero__jump:hover,
.page-faq .faq-hero__jump:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

.page-faq .faq-hero__map {
  margin: 0;
}

.page-faq .faq-hero__map img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-m);
  border: 1px solid rgba(196, 210, 223, 0.22);
  object-fit: cover;
  background: var(--ink-2);
}

.page-faq .faq-hero__map figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted-soft);
}

/* 主体框架 */
.page-faq .faq-shell {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(28px, 5vw, 56px);
}

/* 场景轨道 */
.page-faq .faq-rail__note {
  margin: 18px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-rail .rail__title {
  margin: 0 0 14px;
}

.page-faq .faq-rail .rail__list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-faq .faq-rail .rail__list::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  border-radius: 2px;
  background: var(--faq-line);
}

.page-faq .faq-rail .rail__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 8px 9px 0;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--muted);
  text-decoration: none;
  border-radius: var(--radius-s);
  transition: color 200ms var(--ease);
}

.page-faq .faq-rail .rail__link::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-left: 5px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--line);
  transition: background 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-rail .rail__link:hover,
.page-faq .faq-rail .rail__link:focus-visible {
  color: var(--text);
}

.page-faq .faq-rail .rail__link.is-active {
  color: var(--text);
}

.page-faq .faq-rail .rail__link.is-active::before {
  background: var(--orange);
  border-color: var(--orange);
}

/* 分组 */
.page-faq .faq-group {
  padding: clamp(24px, 3.6vw, 40px) 0;
  border-top: 1px solid var(--faq-line);
  scroll-margin-top: calc(var(--header-offset) + 16px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: 22px;
}

.page-faq .faq-group__num {
  padding-top: 7px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.6vw, 30px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: var(--text);
}

.page-faq .faq-group__desc {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* 内嵌图 */
.page-faq .faq-figure {
  margin: 0 0 22px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-m);
  border: 1px solid var(--faq-line);
  object-fit: cover;
  background: var(--mist);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted);
}

/* 问答条目 */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-m);
  overflow: hidden;
  transition: border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background 220ms var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(242, 106, 61, 0.45);
  box-shadow: 0 6px 20px rgba(14, 27, 42, 0.06);
}

.page-faq .faq-item[open]::before {
  background: var(--orange);
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: -2px;
  border-radius: var(--radius-m);
}

.page-faq .faq-item__no {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--teal-deep);
  padding-top: 2px;
}

.page-faq .faq-item__q {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
}

.page-faq .faq-item__mark {
  position: relative;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: background 220ms var(--ease), border-color 220ms var(--ease);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  top: 50%;
  height: 1.5px;
  margin-top: -0.75px;
  background: var(--muted);
  transition: background 220ms var(--ease), opacity 220ms var(--ease);
}

.page-faq .faq-item__mark::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__mark {
  background: rgba(242, 106, 61, 0.12);
  border-color: var(--orange);
}

.page-faq .faq-item[open] .faq-item__mark::before {
  background: var(--orange);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  opacity: 0;
}

.page-faq .faq-item__body {
  padding: 2px 16px 16px 16px;
  background: var(--mist);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-item__body p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
  max-width: 66ch;
}

/* 高频问题 */
.page-faq .faq-top {
  margin-top: clamp(32px, 5vw, 64px);
  padding: clamp(22px, 3.5vw, 40px);
  background: var(--ink-2);
  color: var(--on-dark);
  border-radius: var(--radius-l);
  scroll-margin-top: calc(var(--header-offset) + 16px);
}

.page-faq .faq-top__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(196, 210, 223, 0.22);
}

.page-faq .faq-top__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-faq .faq-top__note {
  margin: 0;
  font-size: 13px;
  color: var(--muted-soft);
}

.page-faq .faq-top__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-faq .faq-top__list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 6px 12px 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--on-dark);
  text-decoration: none;
  border-bottom: 1px dashed rgba(196, 210, 223, 0.2);
  transition: color 200ms var(--ease), padding-left 220ms var(--ease);
}

.page-faq .faq-top__list a:hover,
.page-faq .faq-top__list a:focus-visible {
  color: var(--amber);
  padding-left: 8px;
}

.page-faq .faq-top__no {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--teal-soft);
}

/* 咨询路径 */
.page-faq .faq-help {
  margin-top: clamp(28px, 4vw, 52px);
  padding: clamp(24px, 4vw, 44px);
  background: var(--mist);
  border-radius: var(--radius-l);
  scroll-margin-top: calc(var(--header-offset) + 16px);
}

.page-faq .faq-help__track {
  position: relative;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--teal), var(--amber), var(--orange));
}

.page-faq .faq-help__track::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--orange);
  transform: translate(50%, -50%);
  box-shadow: 0 0 0 4px rgba(242, 106, 61, 0.16);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-help__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-help__copy p {
  margin: 12px 0 22px;
  max-width: 48ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-help__channels {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-help__item {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  align-items: baseline;
  margin: 0;
  padding: 12px 14px;
  background: var(--paper);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-m);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
}

.page-faq .faq-help__label {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--teal-deep);
}

.page-faq .faq-help__item a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  word-break: break-all;
}

.page-faq .faq-help__item a:hover,
.page-faq .faq-help__item a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-faq .faq-help__back {
  margin: 26px 0 0;
  font-size: 13.5px;
}

/* 响应式：移动端 */
@media (max-width: 899px) {
  .page-faq .faq-rail {
    position: sticky;
    top: 0;
    z-index: 6;
    padding: 10px 0 8px;
    background: var(--mist);
    border-bottom: 1px solid var(--faq-line);
  }

  .page-faq .faq-rail .rail__title {
    margin: 0 0 8px;
    font-size: 12px;
  }

  .page-faq .faq-rail .rail__list {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .page-faq .faq-rail .rail__list::before {
    display: none;
  }

  .page-faq .faq-rail .rail__list > li {
    flex: 0 0 auto;
  }

  .page-faq .faq-rail .rail__link {
    padding: 7px 12px 7px 10px;
    font-size: 13px;
    background: var(--paper);
    border: 1px solid var(--faq-line);
    white-space: nowrap;
  }

  .page-faq .faq-rail .rail__link::before {
    width: 7px;
    height: 7px;
    margin-left: 0;
  }

  .page-faq .faq-rail .rail__link.is-active {
    border-color: var(--orange);
    background: rgba(242, 106, 61, 0.08);
  }

  .page-faq .faq-rail__note {
    display: none;
  }

  .page-faq .faq-group__head {
    gap: 10px;
  }

  .page-faq .faq-item summary {
    padding: 13px 14px;
  }

  .page-faq .faq-item__body {
    padding: 2px 14px 15px;
  }
}

/* 响应式：桌面 */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
  }

  .page-faq .faq-shell {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: clamp(32px, 4.5vw, 64px);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: var(--header-offset);
    padding-right: 8px;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-top__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-figure {
    max-width: 760px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-rail .rail__link,
  .page-faq .faq-rail .rail__link::before,
  .page-faq .faq-item,
  .page-faq .faq-item::before,
  .page-faq .faq-item__mark,
  .page-faq .faq-top__list a {
    transition: none;
  }
}
<<<END>>>