.page-faq {
  --faq-sticky: calc(var(--bar-h-sm) + 16px);
}

.page-faq .crumbs {
  padding-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 22px;
  padding: 14px 0 30px;
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(2rem, 6.4vw, 3.3rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-faq .faq-hero .lede {
  margin: 14px 0 0;
  max-width: 42ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mute);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: 24px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__facts li {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.page-faq .faq-hero__facts .big-num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 600;
  line-height: 1;
  color: var(--lime);
}

.page-faq .faq-fact__k {
  font-size: 12px;
  line-height: 1.5;
  color: var(--mute);
}

.page-faq .faq-hero__fig {
  margin: 0;
  min-width: 0;
}

/* ---------- 筛选条 ---------- */
.page-faq .filterbar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  margin-bottom: 26px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  scrollbar-width: none;
}

.page-faq .filterbar::-webkit-scrollbar {
  display: none;
}

.page-faq .filterbar > * {
  flex: 0 0 auto;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 28px;
  padding-bottom: 56px;
}

.page-faq .faq-side {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-faq .faq-index {
  padding: 14px 12px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--lime);
  border-radius: var(--r);
  background: var(--ink-2);
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  padding-left: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--mute);
}

.page-faq .faq-index ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
}

.page-faq .faq-index a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 8px;
  border-radius: var(--r);
  color: var(--mute);
  font-size: 13.5px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--paper);
  background: var(--ink-3);
  outline: none;
}

.page-faq .faq-index__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--lime);
}

.page-faq .faq-copy {
  display: grid;
  gap: 8px;
  justify-items: start;
  padding: 14px;
  border: 1px solid var(--glass-line);
  border-radius: var(--r);
  background: var(--glass);
}

.page-faq .faq-copy__k {
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-faq .faq-copy__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-copy__n {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mute);
}

.page-faq .faq-main {
  display: grid;
  gap: 34px;
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-faq .faq-sec[hidden] {
  display: none;
}

.page-faq .faq-sec__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-sec__idx {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--lime);
}

.page-faq .faq-sec__title {
  flex: 1 1 auto;
  margin: 0;
  min-width: 0;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .faq-sec__head .tag {
  flex: 0 0 auto;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--ink-2);
  transition: border-color 0.16s var(--ease), transform 0.16s var(--ease);
}

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

.page-faq .qa:hover {
  border-color: var(--glass-line);
  transform: translateY(-2px);
}

.page-faq .qa[open] {
  border-color: var(--lime);
  transform: none;
}

.page-faq .qa__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  list-style: none;
  cursor: pointer;
  color: var(--paper);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
}

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

.page-faq .qa__head:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-faq .qa__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--lime);
}

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

.page-faq .qa__sign {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color 0.16s var(--ease);
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--lime);
  transform: translate(-50%, -50%);
}

.page-faq .qa__sign::before {
  width: 8px;
  height: 1.5px;
}

.page-faq .qa__sign::after {
  width: 1.5px;
  height: 8px;
  transition: opacity 0.16s var(--ease);
}

.page-faq .qa[open] .qa__sign {
  border-color: var(--lime);
}

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

.page-faq .qa__body {
  padding: 0 16px 16px 44px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mute);
}

.page-faq .qa__body p {
  margin: 0;
}

.page-faq .qa__body a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--glass-line);
}

.page-faq .qa__body a:hover {
  border-bottom-color: var(--lime);
}

.page-faq .qa__hl {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--lime);
}

.page-faq .qa__note {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  color: var(--mute);
}

/* ---------- 步骤 ---------- */
.page-faq .steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 9px;
}

.page-faq .steps > li {
  position: relative;
  padding-left: 24px;
  counter-increment: step;
}

.page-faq .steps > li::before {
  content: counter(step);
  position: absolute;
  top: 3px;
  left: 0;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--ink-3);
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  line-height: 17px;
  text-align: center;
}

.page-faq .steps > li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 22px;
  bottom: -9px;
  left: 8px;
  width: 1px;
  background: var(--line);
}

/* ---------- 配图 ---------- */
.page-faq .faq-fig {
  max-width: 220px;
  margin: 18px 0 0;
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--amber);
  border-radius: var(--r);
  background: var(--ink-2);
}

.page-faq .faq-contact__body p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper);
}

.page-faq .faq-contact__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}

.page-faq .faq-contact__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mute);
}

.page-faq .faq-contact__list li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 6px;
  height: 1.5px;
  background: var(--amber);
}

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

.page-faq .faq-channel {
  display: grid;
  gap: 2px;
  margin: 0;
  min-width: 0;
}

.page-faq .faq-channel__k {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-faq .faq-channel__v {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 26px;
    padding: 22px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
    gap: 38px;
    padding: 26px 0 46px;
  }

  .page-faq .faq-hero__fig {
    padding-bottom: 6px;
  }

  .page-faq .faq-hero__facts {
    gap: 16px 34px;
  }

  .page-faq .faq-sec__title {
    font-size: 20px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 252px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: var(--faq-sticky);
  }

  .page-faq .qa__body {
    padding-left: 46px;
    padding-right: 20px;
  }
}

@media (max-width: 560px) {
  .page-faq .qa__body {
    padding-left: 16px;
    padding-right: 14px;
  }

  .page-faq .qa__head {
    padding: 12px 14px;
    font-size: 14.5px;
  }

  .page-faq .faq-fig {
    max-width: 168px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__sign,
  .page-faq .faq-index a,
  .page-faq .qa__sign::after {
    transition: none;
  }

  .page-faq .qa:hover {
    transform: none;
  }
}
<<<END>>>