.page-faq {
  --faq-radius: 26px;
  --faq-open: rgba(255, 90, 31, .42);
  color: var(--c-mist);
  padding: 26px 0 84px;
}

.page-faq a {
  color: inherit;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-graphite);
  padding-bottom: 24px;
}

.page-faq .faq-crumb a {
  text-decoration: none;
  color: var(--c-graphite);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-crumb a:hover {
  color: var(--c-amber);
  border-color: var(--c-amber);
}

.page-faq .faq-crumb span:last-child {
  color: var(--c-amber);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: 34px 22px 30px;
  background:
    radial-gradient(118% 132% at 88% -18%, rgba(255, 90, 31, .18), transparent 58%),
    linear-gradient(200deg, #131920 0%, var(--c-deep) 72%);
  overflow: hidden;
}

.page-faq .faq-hero::before,
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 176, 32, .5);
  pointer-events: none;
}

.page-faq .faq-hero::before {
  top: 14px;
  left: 14px;
  border-right: 0;
  border-bottom: 0;
  border-top-left-radius: 16px;
}

.page-faq .faq-hero::after {
  right: 14px;
  bottom: 14px;
  border-left: 0;
  border-top: 0;
  border-bottom-right-radius: 16px;
}

.page-faq .faq-hero__eyebrow {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--c-cold);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(27px, 7.4vw, 50px);
  line-height: 1.18;
  letter-spacing: -.02em;
  max-width: 17em;
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-graphite);
}

.page-faq .faq-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero__meter {
  display: flex;
  gap: 6px;
  margin-top: 26px;
}

.page-faq .faq-hero__meter i {
  display: block;
  width: 26px;
  height: 3px;
  border-radius: 3px;
  background: var(--c-line);
}

.page-faq .faq-hero__meter i:nth-child(1) { background: var(--c-lava); }
.page-faq .faq-hero__meter i:nth-child(2) { background: var(--c-amber); }
.page-faq .faq-hero__meter i:nth-child(3) { background: var(--c-cold); }
.page-faq .faq-hero__meter i:nth-child(4) { background: var(--c-graphite); }

/* ---------- 目录胶囊 ---------- */
.page-faq .faq-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 30px;
}

.page-faq .faq-toc__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px 9px 12px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  background: var(--c-deep);
  color: var(--c-mist);
  font-size: 13px;
  text-decoration: none;
  transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-toc__item span {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-cold);
}

.page-faq .faq-toc__item:hover,
.page-faq .faq-toc__item:focus-visible {
  border-color: var(--c-amber);
  color: var(--c-amber-soft);
  background: #171d25;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-top: 52px;
}

.page-faq .faq-group__head {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 52px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-cold);
}

.page-faq .faq-group__num {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--c-lava);
}

.page-faq .faq-group__head h2 {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(20px, 4.6vw, 30px);
  line-height: 1.3;
  letter-spacing: -.01em;
}

.page-faq .faq-group__tag {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--c-graphite);
}

.page-faq .faq-group__lead {
  margin: 18px 0 0;
  max-width: 52ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-graphite);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 20px 0 0;
}

.page-faq .img-frame img {
  max-width: 100%;
  height: auto;
  border-radius: calc(var(--r-md) - 2px);
}

/* ---------- 位置图例 ---------- */
.page-faq .pos-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.page-faq .pos-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border: 1px solid rgba(47, 212, 198, .28);
  border-radius: var(--r-md);
  background: rgba(14, 58, 56, .34);
}

.page-faq .pos-item svg {
  flex: none;
}

.page-faq .pos-item b {
  font-family: var(--f-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-cold);
}

.page-faq .pos-item span {
  font-size: 12px;
  color: var(--c-graphite);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .qa {
  position: relative;
  background: var(--c-deep);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--c-lava);
  opacity: 0;
  transition: opacity .2s var(--ease);
}

.page-faq .qa:hover {
  border-color: #33404d;
}

.page-faq .qa[open] {
  border-color: var(--faq-open);
  background: #131920;
}

.page-faq .qa[open]::before {
  opacity: 1;
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--c-mist);
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--c-amber);
  outline-offset: -3px;
  border-radius: var(--r-md);
}

.page-faq .qa__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa__ic {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--c-line);
  border-radius: 50%;
  transition: border-color .2s var(--ease);
}

.page-faq .qa__ic::before,
.page-faq .qa__ic::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--c-amber);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: opacity .2s var(--ease);
}

.page-faq .qa__ic::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .qa__ic::after {
  width: 1.5px;
  height: 10px;
}

.page-faq .qa[open] .qa__ic {
  border-color: var(--c-lava);
}

.page-faq .qa[open] .qa__ic::after {
  opacity: 0;
}

.page-faq .qa__a {
  padding: 0 18px 18px;
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-graphite);
}

.page-faq .qa__a p + p {
  margin-top: .8em;
}

.page-faq .qa__a a {
  color: var(--c-cold);
  text-decoration: underline;
  text-decoration-color: rgba(47, 212, 198, .45);
  text-underline-offset: 3px;
}

.page-faq .qa__a a:hover {
  color: var(--c-amber-soft);
  text-decoration-color: var(--c-amber-soft);
}

.page-faq .qa__a code {
  display: inline-block;
  padding: 1px 7px;
  border: 1px solid var(--c-line);
  border-radius: 6px;
  background: var(--c-night);
  font-family: var(--f-mono);
  font-size: 12.5px;
  color: var(--c-cold);
}

/* ---------- 排查提示 ---------- */
.page-faq .faq-note {
  margin-top: 18px;
  padding: 20px 20px 22px;
  border: 1px solid rgba(47, 212, 198, .26);
  border-radius: var(--r-md);
  background: rgba(14, 58, 56, .32);
}

.page-faq .faq-note__tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--r-pill);
  background: var(--c-cold);
  color: #06201f;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .16em;
}

.page-faq .faq-note ol {
  margin: 14px 0 0;
  padding-left: 20px;
  display: grid;
  gap: 9px;
}

.page-faq .faq-note li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-faq .faq-note li::marker {
  font-family: var(--f-mono);
  color: var(--c-cold);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--c-line);
}

.page-faq .faq-contact__cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: var(--c-deep);
}

.page-faq .faq-contact__k {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--c-graphite);
}

.page-faq .faq-contact__v {
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-amber-soft);
  word-break: break-word;
}

.page-faq .faq-cross {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--c-graphite);
}

.page-faq .faq-cross a {
  color: var(--c-cold);
  text-decoration: underline;
  text-decoration-color: rgba(47, 212, 198, .45);
  text-underline-offset: 3px;
}

.page-faq .faq-cross a:hover {
  color: var(--c-amber-soft);
  text-decoration-color: var(--c-amber-soft);
}

/* ---------- 底部 ---------- */
.page-faq .faq-foot {
  margin-top: 54px;
  padding-top: 26px;
  border-top: 1px solid var(--c-line);
  display: flex;
  justify-content: center;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 768px) {
  .page-faq {
    padding: 34px 0 100px;
  }

  .page-faq .faq-hero {
    padding: 52px 46px 46px;
  }

  .page-faq .faq-hero__lead {
    font-size: 16px;
  }

  .page-faq .faq-group {
    margin-top: 66px;
  }

  .page-faq .qa summary {
    padding: 19px 24px;
    font-size: 16px;
  }

  .page-faq .qa__a {
    padding: 0 24px 22px;
  }

  .page-faq .qa__a p {
    font-size: 15px;
  }

  .page-faq .pos-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .pos-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

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

  .page-faq .faq-note {
    padding: 24px 28px 26px;
  }

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

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: 62px 64px 54px;
    border-radius: var(--r-lg);
  }

  .page-faq .faq-hero h1 {
    max-width: 14em;
  }

  .page-faq .faq-toc {
    gap: 10px;
    margin-top: 36px;
  }

  .page-faq .qa-list {
    gap: 12px;
  }

  .page-faq .faq-figure {
    max-width: 74%;
  }

  .page-faq .faq-group--contact .faq-list,
  .page-faq .faq-group--contact .qa-list {
    max-width: 100%;
  }

  .page-faq .faq-cross {
    max-width: 74ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}
<<<END>>>