.page-faq {
  --faq-rail: 300px;
  --faq-sticky: calc(var(--topbar-h) + 24px);
  --faq-num-col: 2.6rem;
  background: var(--ink-0);
  color: var(--white);
}

.page-faq .crumbs {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-faq .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .crumbs__item + .crumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-faq .crumbs__link {
  color: var(--muted);
  text-decoration: none;
}

.page-faq .crumbs__link:hover,
.page-faq .crumbs__link:focus-visible {
  color: var(--lime);
}

/* ---------- 首屏拼贴 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 4vw, 54px) 0 clamp(34px, 5vw, 66px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -12%;
  width: min(680px, 68vw);
  height: min(680px, 68vw);
  background: radial-gradient(circle at 58% 42%, rgba(201, 255, 61, 0.12), transparent 62%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
}

.page-faq .faq-hero__title {
  margin: 16px 0 0;
  max-width: 16em;
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 46em;
  color: var(--muted);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__media {
  margin: 0;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-faq .faq-hero__media img,
.page-faq .faq-path__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-hero__note {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-1);
  padding: clamp(20px, 3vw, 28px);
}

.page-faq .faq-note-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-note-list li {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
}

.page-faq .faq-note-list__num {
  color: var(--cyan);
  font-size: 14px;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    grid-template-areas:
      "lead lead"
      "media note";
    align-items: end;
  }

  .page-faq .faq-hero__lead { grid-area: lead; }
  .page-faq .faq-hero__media { grid-area: media; aspect-ratio: 21 / 9; }
  .page-faq .faq-hero__note { grid-area: note; }
}

/* ---------- 索引带 ---------- */
.page-faq .index-band {
  overflow-x: auto;
  margin-top: clamp(6px, 1.6vw, 14px);
}

.page-faq .index-band__track {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 12px;
  min-height: 72px;
  padding-bottom: 4px;
}

.page-faq .band-chip {
  flex: 0 0 auto;
}

/* ---------- 区块骨架 ---------- */
.page-faq .faq-block {
  padding: clamp(46px, 6vw, 92px) 0;
}

.page-faq .faq-block__head {
  max-width: 46em;
  margin-bottom: clamp(24px, 3vw, 40px);
}

.page-faq .faq-block__intro {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

/* ---------- 栏目定位 ---------- */
.page-faq .faq-start {
  border-top: 1px solid var(--line);
}

.page-faq .faq-lanes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-faq .faq-lane {
  padding: clamp(22px, 3vw, 34px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-faq .faq-lane--side {
  background: var(--ink-1);
}

.page-faq .faq-lane__title {
  margin: 16px 0 0;
  font-size: 19px;
  font-weight: 600;
}

.page-faq .faq-lane__desc {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-lane__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-lane__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--white);
}

.page-faq .faq-lane__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
}

.page-faq .faq-lane--side .faq-lane__list li::before {
  background: var(--orange);
}

.page-faq .faq-lane__link {
  margin-top: 22px;
}

@media (min-width: 820px) {
  .page-faq .faq-lanes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

/* ---------- 问答区 ---------- */
.page-faq .faq-qa {
  background: var(--ink-1);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-qa__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

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

.page-faq .faq-group + .faq-group {
  margin-top: 44px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
}

.page-faq .faq-group__note {
  margin: 10px 0 0;
  font-size: 14px;
  color: var(--muted);
}

.page-faq .faq-group__list {
  margin-top: 18px;
}

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

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

.page-faq .qa-item summary {
  display: grid;
  grid-template-columns: var(--faq-num-col) minmax(0, 1fr) 1.4rem;
  gap: 0.85rem;
  align-items: baseline;
  min-height: 44px;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}

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

.page-faq .qa-item summary::marker {
  content: "";
}

.page-faq .qa-item__num {
  font-size: 13px;
  color: var(--muted);
  transition: color var(--dur) var(--ease);
}

.page-faq .qa-item__q {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
}

.page-faq .qa-item summary::after {
  content: "+";
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--lime);
}

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

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

.page-faq .qa-item summary:hover .qa-item__num,
.page-faq .qa-item[open] .qa-item__num {
  color: var(--lime);
}

.page-faq .qa-item summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 4px;
  border-radius: var(--radius-md);
}

.page-faq .qa-item__a {
  padding: 0 0 20px calc(var(--faq-num-col) + 0.85rem);
  max-width: 62em;
}

.page-faq .qa-item__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .qa-item__a p + p {
  margin-top: 10px;
}

.page-faq .faq-inline-link {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 255, 61, 0.4);
  font-size: 14px;
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  border-bottom-color: var(--lime);
}

/* ---------- 右侧常驻提示条 ---------- */
.page-faq .faq-aside__card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-0);
  padding: clamp(20px, 2.6vw, 28px);
}

.page-faq .faq-aside__card::before {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 155, 69, 0.16);
  margin-bottom: 16px;
}

.page-faq .faq-aside__lead {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--white);
}

.page-faq .faq-aside__steps {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-aside__steps li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-aside__steps .mono {
  color: var(--orange);
  font-size: 13px;
}

.page-faq .faq-aside__cta {
  margin-top: 22px;
  width: 100%;
  justify-content: center;
}

@media (min-width: 1024px) {
  .page-faq .faq-qa__body {
    grid-template-columns: minmax(0, 1fr) var(--faq-rail);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: var(--faq-sticky);
    align-self: start;
  }
}

/* ---------- 排查顺序 ---------- */
.page-faq .faq-path__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 44px);
  align-items: center;
}

.page-faq .faq-path__media {
  margin: 0;
  aspect-ratio: 10 / 7;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-faq .faq-path__list {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 4px;
  counter-reset: faq-step;
}

.page-faq .faq-path__list li {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-path__list li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-path__num {
  font-size: 13px;
  color: var(--lime);
  padding-top: 4px;
}

.page-faq .faq-path__list strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
}

.page-faq .faq-path__list p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

@media (min-width: 960px) {
  .page-faq .faq-path__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

/* ---------- 联系区 ---------- */
.page-faq .faq-contact {
  padding-bottom: clamp(56px, 7vw, 104px);
}

.page-faq .faq-contact__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3vw, 40px);
  padding: clamp(26px, 3.6vw, 46px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-faq .faq-contact__lead p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 48em;
}

.page-faq .faq-contact__btn {
  margin-top: 24px;
}

.page-faq .faq-contact__meta {
  border-left: 2px solid var(--lime);
  padding-left: clamp(18px, 2.4vw, 28px);
}

.page-faq .faq-contact__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-contact__value {
  margin: 6px 0 18px;
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-contact__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-faq .faq-contact__panel {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    align-items: start;
  }
}

.page-faq .faq-totop {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  margin-top: 28px;
  padding: 0 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-totop:hover,
.page-faq .faq-totop:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
}

.page-faq [data-reveal] {
  opacity: 1;
}

@media (max-width: 640px) {
  .page-faq {
    --faq-num-col: 2.2rem;
  }

  .page-faq .faq-hero__title {
    max-width: none;
  }

  .page-faq .faq-hero__actions .btn {
    flex: 1 1 auto;
    justify-content: center;
  }

  .page-faq .qa-item__a {
    padding-left: 0;
  }

  .page-faq .faq-path__list li {
    grid-template-columns: 2.4rem minmax(0, 1fr);
    gap: 10px;
  }

  .page-faq .faq-contact__meta {
    border-left: 0;
    border-top: 2px solid var(--lime);
    padding-left: 0;
    padding-top: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-item summary,
  .page-faq .faq-totop,
  .page-faq .qa-item__num {
    transition: none;
  }
}
<<<END>>>