.page-faq {
  --g-set: #38F2E0;
  --g-data: #0FA9A0;
  --g-account: #4C8FD6;
  --g-version: #FF5A2B;
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 18px 0 6px;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: -110px;
  right: -32%;
  width: 98%;
  height: 360px;
  background: linear-gradient(150deg, rgba(27, 58, 107, .78), rgba(6, 11, 24, 0) 72%);
  transform: rotate(-7deg);
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
  align-items: center;
}
.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 7vw, 50px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--mist);
}
.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--dim);
}
.page-faq .faq-hero__jump {
  display: inline-block;
  margin-top: 20px;
  padding-bottom: 2px;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 224, .38);
  transition: border-color .16s var(--ease), color .16s var(--ease);
}
.page-faq .faq-hero__jump:hover {
  color: var(--mist);
  border-bottom-color: var(--cyan);
}
.page-faq .faq-hero__figure {
  margin: 0;
}
.page-faq .faq-hero__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-2);
  background: linear-gradient(160deg, rgba(15, 169, 160, .22), rgba(6, 11, 24, .94) 64%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}
.page-faq .faq-hero__frame img {
  display: block;
  width: 100%;
  height: auto;
  filter: saturate(.82) brightness(.94);
}
.page-faq .faq-hero__figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--slate);
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 26px 0 10px;
  }
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: 46px;
    padding-top: 14px;
  }
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 30px;
  padding-top: 34px;
}
.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--slate);
}
.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.page-faq .faq-index__item--set { --dot: var(--g-set); }
.page-faq .faq-index__item--data { --dot: var(--g-data); }
.page-faq .faq-index__item--account { --dot: var(--g-account); }
.page-faq .faq-index__item--version { --dot: var(--g-version); }

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--dot);
  background: rgba(14, 23, 41, .62);
  color: var(--dim);
  font-size: 14px;
  text-decoration: none;
  transition: color .16s var(--ease), background .16s var(--ease), border-color .16s var(--ease), padding-left .16s var(--ease);
}
.page-faq .faq-index__link:hover {
  color: var(--mist);
  background: rgba(27, 58, 107, .42);
}
.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-faq .faq-index__dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--dot);
  box-shadow: 0 0 8px var(--dot);
}
.page-faq .faq-index__label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.page-faq .faq-index__count {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--slate);
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    padding-top: 44px;
  }
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--head-h) + 22px);
  }
  .page-faq .faq-index__list {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .page-faq .faq-index__link {
    border: 0;
    border-bottom: 1px solid var(--line);
    border-left: 2px solid transparent;
    background: none;
    padding: 14px 4px;
    font-size: 14.5px;
  }
  .page-faq .faq-index__link:hover {
    border-left-color: var(--dot);
    padding-left: 12px;
    background: linear-gradient(90deg, rgba(27, 58, 107, .5), rgba(27, 58, 107, 0));
  }
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--head-h) + 20px);
}
.page-faq .faq-group + .faq-group {
  margin-top: 48px;
}
.page-faq .faq-group--set { --dot: var(--g-set); }
.page-faq .faq-group--data { --dot: var(--g-data); }
.page-faq .faq-group--account { --dot: var(--g-account); }
.page-faq .faq-group--version { --dot: var(--g-version); }

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 12px;
  align-items: baseline;
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line-2);
}
.page-faq .faq-group__code {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--dot);
}
.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 4.6vw, 27px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--mist);
}
.page-faq .faq-group__hint {
  grid-column: 2;
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 问答条 ---------- */
.page-faq .qa {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 23, 41, .78), rgba(14, 23, 41, .42));
  transition: border-color .16s var(--ease), transform .18s var(--ease), background .18s var(--ease);
}
.page-faq .qa + .qa {
  margin-top: 8px;
}
@media (hover: hover) {
  .page-faq .qa:hover {
    border-color: rgba(56, 242, 224, .34);
  }
}
.page-faq .qa[open] {
  background: linear-gradient(180deg, rgba(20, 34, 56, .94), rgba(14, 23, 41, .6));
  border-color: rgba(56, 242, 224, .46);
}
@media (min-width: 760px) {
  .page-faq .qa[open] {
    transform: translateX(-6px);
  }
}
.page-faq .qa__head {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) 16px;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.6;
  transition: color .16s var(--ease);
}
.page-faq .qa__head::-webkit-details-marker {
  display: none;
}
.page-faq .qa__head:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}
.page-faq .qa__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--dot);
}
.page-faq .qa__q {
  min-width: 0;
}
.page-faq .qa__mark {
  position: relative;
  justify-self: end;
  width: 14px;
  height: 14px;
}
.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--slate);
  transition: transform .18s var(--ease), background .18s var(--ease);
}
.page-faq .qa__mark::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 1.5px;
}
.page-faq .qa__mark::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 1.5px;
}
.page-faq .qa[open] .qa__mark::before {
  background: var(--dot);
}
.page-faq .qa[open] .qa__mark::after {
  transform: scaleY(0);
}
.page-faq .qa__body {
  padding: 0 16px 18px 54px;
  color: var(--dim);
  font-size: 14.5px;
  line-height: 1.85;
}
.page-faq .qa__body::before {
  content: "";
  display: block;
  width: 34px;
  height: 2px;
  margin: 0 0 12px;
  background: var(--dot);
  opacity: .75;
}
.page-faq .qa__body p {
  margin: 0;
}
.page-faq .qa__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 224, .4);
}
.page-faq .qa__body a:hover {
  border-bottom-color: var(--cyan);
}
.page-faq .qa__steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.page-faq .qa__steps li {
  position: relative;
  padding-left: 34px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--slate);
}
.page-faq .qa__steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--dot);
}
@media (max-width: 520px) {
  .page-faq .qa__head {
    grid-template-columns: 22px minmax(0, 1fr) 14px;
    gap: 10px;
    padding: 14px 13px;
    font-size: 14.5px;
  }
  .page-faq .qa__body {
    padding: 0 13px 16px 45px;
    font-size: 14px;
  }
}

/* ---------- 排查路径 ---------- */
.page-faq .faq-resolve {
  margin-top: 72px;
  padding: 46px 0 64px;
  border-top: 1px solid var(--line-2);
  background: linear-gradient(180deg, rgba(12, 27, 47, .6), rgba(6, 11, 24, 0) 72%);
}
.page-faq .faq-resolve__head {
  max-width: 40rem;
}
.page-faq .faq-resolve__title {
  margin: 10px 0 0;
  font-family: var(--font-editorial);
  font-size: clamp(22px, 5.4vw, 32px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--mist);
}
.page-faq .faq-resolve__intro {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--dim);
}
.page-faq .faq-resolve__steps {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  gap: 24px;
}
.page-faq .faq-resolve__step {
  position: relative;
  padding-left: 46px;
}
.page-faq .faq-resolve__step::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 22px;
  bottom: -24px;
  width: 1px;
  background: linear-gradient(180deg, rgba(56, 242, 224, .5), rgba(27, 58, 107, .06));
}
.page-faq .faq-resolve__step:last-child::before {
  content: none;
}
.page-faq .faq-resolve__idx {
  position: absolute;
  left: 0;
  top: 0;
  width: 33px;
  height: 19px;
  line-height: 17px;
  text-align: center;
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--cyan);
  border: 1px solid rgba(56, 242, 224, .4);
  background: var(--ink-0);
}
.page-faq .faq-resolve__step h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--mist);
}
.page-faq .faq-resolve__step p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate);
}
.page-faq .faq-resolve__figure {
  margin: 38px auto 0;
  max-width: 380px;
}
.page-faq .faq-resolve__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  filter: saturate(.85) brightness(.95);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-faq .faq-resolve__contact {
  margin-top: 38px;
  padding: 24px 22px 34px;
  border: 1px solid var(--line-2);
  background: linear-gradient(160deg, rgba(15, 169, 160, .14), rgba(14, 23, 41, .88));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}
.page-faq .faq-resolve__contact-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  color: var(--mist);
}
.page-faq .faq-resolve__meta {
  margin: 0;
  display: grid;
  gap: 10px;
}
.page-faq .faq-resolve__meta > div {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
}
.page-faq .faq-resolve__meta dt {
  color: var(--slate);
}
.page-faq .faq-resolve__meta dd {
  margin: 0;
  color: var(--mist);
  word-break: break-word;
}
.page-faq .faq-resolve__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
@media (max-width: 520px) {
  .page-faq .faq-resolve__meta > div {
    grid-template-columns: 68px minmax(0, 1fr);
  }
  .page-faq .faq-resolve__contact {
    padding: 20px 16px 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .faq-index__link,
  .page-faq .faq-hero__jump {
    transition: none;
  }
  .page-faq .qa[open] {
    transform: none;
  }
}
<<<END>>>