.page-faq {
  --faq-sticky: calc(var(--tick-h) + var(--mast-h) + 18px);
  --faq-shadow: 0 1px 0 rgba(244, 239, 228, .04);
}

.page-faq [id] {
  scroll-margin-top: calc(var(--tick-h) + var(--mast-h) + 16px);
}

.page-faq .section {
  padding-block: clamp(36px, 6vw, 84px);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(16px, 3vw, 30px) clamp(26px, 4vw, 44px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-size: clamp(2.4rem, 8vw, 6rem);
  line-height: .94;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-hero__sub {
  margin: clamp(16px, 2vw, 22px) 0 0;
  max-width: 52ch;
  color: var(--muted);
  font-size: clamp(.94rem, 1.1vw, 1.02rem);
  line-height: 1.8;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.6vw, 28px);
}

.page-faq .faq-hero__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-pill {
  display: inline-block;
  padding: 7px 13px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .04em;
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-pill:hover {
  border-color: var(--red);
  color: var(--paper-bright);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-faq .faq-hero__media::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--red);
  z-index: 2;
}

.page-faq .faq-hero__media .media__img {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 460px;
  object-fit: cover;
}

.page-faq .faq-hero__media .media__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 10px 14px;
  background: rgba(11, 14, 20, .86);
  color: var(--muted);
  font-size: .74rem;
  line-height: 1.6;
}

.page-faq .faq-hero__strip {
  margin-top: clamp(24px, 3.4vw, 40px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-unit {
  font-size: .55em;
  margin-left: 2px;
  color: var(--muted);
}

/* ---------- 热门问题索引 ---------- */
.page-faq .faq-index__grid {
  display: grid;
  gap: var(--gap);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-cat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--paper);
  text-decoration: none;
  box-shadow: var(--faq-shadow);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-cat::before {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  width: 3px;
  background: var(--red);
  opacity: 0;
  transition: opacity .2s var(--ease);
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  border-color: #2B3442;
  transform: translateY(-2px);
}

.page-faq .faq-cat:hover::before,
.page-faq .faq-cat:focus-visible::before {
  opacity: 1;
}

.page-faq .faq-cat__num {
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-size: clamp(1.02rem, 1.5vw, 1.16rem);
  line-height: 1.35;
  color: var(--paper-bright);
}

.page-faq .faq-cat__desc {
  margin: 0;
  color: var(--muted);
  font-size: .88rem;
  line-height: 1.7;
}

.page-faq .faq-cat__go {
  margin-top: auto;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-faq .faq-index__aside {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  background: var(--ink);
}

.page-faq .faq-aside__media {
  margin: 0;
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-aside__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-faq .faq-aside__note {
  margin: 0;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.7;
}

.page-faq .faq-aside__btn {
  margin-top: auto;
  align-self: flex-start;
}

/* ---------- 排查主体 ---------- */
.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}

.page-faq .faq-body__head {
  margin-bottom: clamp(16px, 2.4vw, 24px);
}

.page-faq .faq-toc {
  padding: 16px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-toc .toc__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-faq .faq-toc .toc__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc .toc__link {
  display: block;
  padding: 9px 0 9px 11px;
  border-left: 2px solid var(--line);
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.45;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-toc .toc__link:hover {
  color: var(--paper);
}

.page-faq .faq-toc .toc__link[aria-current] {
  color: var(--paper-bright);
  border-left-color: var(--red);
}

.page-faq .qa-block {
  padding-block: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--line);
}

.page-faq .qa-block:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.page-faq .qa-block__head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: clamp(12px, 2vw, 18px);
}

.page-faq .qa-block__num {
  flex: none;
  padding-top: 2px;
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1;
  color: var(--red);
}

.page-faq .qa-block__title {
  margin: 0;
  font-size: clamp(1.2rem, 2.4vw, 1.65rem);
  line-height: 1.3;
  color: var(--paper-bright);
}

.page-faq .qa-block__lead {
  margin: 8px 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.7;
}

.page-faq .qa-block__para {
  max-width: 64ch;
  margin: 0 0 16px;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.8;
}

.page-faq .faq-mail {
  color: var(--cyan);
  word-break: break-all;
}

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

.page-faq .qa__q {
  position: relative;
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 15px 34px 15px 0;
  list-style: none;
  cursor: pointer;
  color: var(--paper);
  font-size: clamp(.95rem, 1.4vw, 1.02rem);
  font-weight: 600;
  line-height: 1.55;
  transition: color .2s var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 13px;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1.4;
  color: var(--cyan);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
}

.page-faq .qa__q:hover {
  color: var(--paper-bright);
}

.page-faq .qa__idx {
  flex: none;
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-faq .qa__a {
  padding: 2px 0 20px;
}

.page-faq .qa__a p {
  max-width: 64ch;
  margin: 0 0 10px;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.8;
}

.page-faq .qa__steps {
  counter-reset: qa-step;
  display: grid;
  gap: 9px;
  margin: 12px 0 14px;
  padding: 0;
  list-style: none;
}

.page-faq .qa__steps li {
  counter-increment: qa-step;
  position: relative;
  padding-left: 38px;
  color: var(--paper);
  font-size: .89rem;
  line-height: 1.7;
}

.page-faq .qa__steps li::before {
  content: counter(qa-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .16em;
  padding: 1px 5px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--cyan);
}

.page-faq .qa__tip {
  border-left: 2px solid var(--gold);
  padding-left: 12px;
  color: var(--muted);
  font-size: .85rem;
}

.page-faq .qa__link {
  color: var(--cyan);
  font-size: .86rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .35);
}

.page-faq .qa__link:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 反馈清单与流程 ---------- */
.page-faq .faq-checklist {
  display: grid;
  gap: 10px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 22px;
  color: var(--paper);
  font-size: .9rem;
  line-height: 1.7;
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .62em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
}

.page-faq .faq-flow {
  margin: 4px 0 22px;
  padding: clamp(14px, 2.4vw, 26px);
  border: 1px solid var(--line);
  background: var(--ink);
}

.page-faq .faq-flow svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-flow svg text {
  font-family: var(--font-body);
  font-size: 16px;
  fill: var(--paper);
}

.page-faq .faq-flow svg .faq-flow__note {
  font-size: 13px;
  fill: var(--muted);
}

.page-faq .faq-flow__caption {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: .8rem;
  line-height: 1.7;
}

/* ---------- 仍需帮助 ---------- */
.page-faq .faq-links {
  display: grid;
  gap: var(--gap);
  margin: 4px 0 clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: var(--panel);
  text-decoration: none;
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-link:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-link__title {
  font-size: .98rem;
  font-weight: 700;
  color: var(--paper-bright);
}

.page-faq .faq-link__desc {
  color: var(--muted);
  font-size: .84rem;
  line-height: 1.6;
}

.page-faq .faq-contact {
  display: grid;
  gap: 12px;
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  background: var(--panel);
}

.page-faq .faq-contact__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-contact__key {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-faq .faq-contact__val {
  color: var(--paper-bright);
  font-size: .9rem;
  word-break: break-all;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .faq-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .7fr);
    align-items: end;
  }

  .page-faq .faq-hero__media .media__img {
    max-height: none;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) minmax(230px, .82fr);
    align-items: start;
  }

  .page-faq .faq-index__aside {
    grid-column: 3;
    grid-row: 1 / span 2;
    align-self: stretch;
  }

  .page-faq .faq-body__grid {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }

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

  .page-faq .faq-toc .toc__list {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-link,
  .page-faq .faq-pill {
    transition: none;
  }

  .page-faq .faq-cat:hover,
  .page-faq .faq-link:hover {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>
<<<END>>>