.page-faq {
  --faq-paper-soft: rgba(233, 240, 247, 0.78);
  --faq-paper-mid: rgba(233, 240, 247, 0.9);
  --faq-rule: rgba(36, 52, 74, 0.78);
  --faq-cyan-rule: rgba(83, 243, 228, 0.42);
  background:
    radial-gradient(880px 500px at 84% -6%, rgba(156, 124, 255, 0.16), transparent 62%),
    radial-gradient(720px 420px at 2% 8%, rgba(83, 243, 228, 0.09), transparent 60%),
    var(--c-space);
  color: var(--c-paper);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq a {
  color: var(--c-cyan);
  text-decoration-color: rgba(83, 243, 228, 0.45);
  text-underline-offset: 3px;
}

.page-faq a:hover {
  color: var(--c-violet);
  text-decoration-color: currentColor;
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 3.4vw, 34px) 0 clamp(30px, 5vw, 52px);
  border-bottom: 1px solid var(--c-line);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(36, 52, 74, 0.34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 52, 74, 0.34) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: radial-gradient(120% 92% at 72% 0%, #000 0%, transparent 74%);
  mask-image: radial-gradient(120% 92% at 72% 0%, #000 0%, transparent 74%);
  opacity: 0.45;
  pointer-events: none;
}

.page-faq .faq-hero > .container {
  position: relative;
}

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

.page-faq .faq-terminal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 10px 14px;
  border: 1px solid var(--c-line);
  border-radius: 3px;
  background: linear-gradient(180deg, rgba(13, 21, 36, 0.94), rgba(6, 10, 19, 0.86));
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  color: var(--c-steel);
  overflow-x: auto;
}

.page-faq .faq-terminal__prompt {
  color: var(--c-cyan);
  font-weight: 700;
}

.page-faq .faq-terminal__cmd {
  color: var(--faq-paper-mid);
  white-space: nowrap;
}

.page-faq .faq-terminal__hint {
  margin-left: auto;
  color: rgba(143, 163, 183, 0.72);
  font-size: 0.7rem;
  white-space: nowrap;
}

.page-faq .faq-hero__title {
  max-width: 20ch;
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.95rem, 5.6vw, 3.5rem);
  line-height: 1.16;
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__lede {
  max-width: 64ch;
  margin-top: 18px;
  color: var(--faq-paper-soft);
  font-size: clamp(0.94rem, 1.6vw, 1.05rem);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump__link {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--c-line);
  border-radius: 2px;
  background: rgba(13, 21, 36, 0.6);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease), color 0.22s var(--ease);
}

.page-faq .faq-jump__link:hover {
  border-color: var(--c-cyan);
  background: var(--c-cyan-soft);
  color: var(--c-paper);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  padding-top: clamp(30px, 4.6vw, 58px);
  padding-bottom: clamp(48px, 7vw, 92px);
}

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

.page-faq .faq-rail {
  display: none;
  min-width: 0;
}

.page-faq .faq-rail__caption {
  margin: 0 0 12px;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--c-steel);
}

.page-faq .faq-rail__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rail__link {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px 9px 12px;
  border-left: 2px solid transparent;
  color: var(--c-steel);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-left-color: var(--c-cyan);
  background: rgba(83, 243, 228, 0.07);
  color: var(--c-paper);
}

.page-faq .faq-rail__num {
  font-size: 0.7rem;
  color: var(--c-violet);
  letter-spacing: 0.08em;
}

.page-faq .faq-rail__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-rule);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: rgba(143, 163, 183, 0.85);
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding: clamp(26px, 4vw, 42px) 0;
  border-top: 1px solid var(--faq-rule);
  scroll-margin-top: 90px;
}

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

.page-faq .section-head {
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-faq .section-head__title {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.3;
  max-width: 26ch;
}

.page-faq .section-head__note {
  max-width: 66ch;
  color: var(--faq-paper-soft);
  font-size: 0.94rem;
}

/* ---------- 步骤卡 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-step {
  position: relative;
  padding: clamp(18px, 2.4vw, 24px) clamp(16px, 2.2vw, 22px);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background: linear-gradient(158deg, rgba(13, 21, 36, 0.95), rgba(6, 10, 19, 0.72));
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-cyan), var(--c-violet));
  opacity: 0.5;
  transition: opacity 0.22s var(--ease);
}

.page-faq .faq-step:hover {
  border-color: var(--faq-cyan-rule);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.page-faq .faq-step:hover::before {
  opacity: 1;
}

.page-faq .faq-step__num {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--faq-cyan-rule);
  border-radius: 2px;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
}

.page-faq .faq-step__title {
  margin: 14px 0 8px;
  font-size: 1.04rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--c-paper);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 0.92rem;
  color: var(--faq-paper-soft);
}

.page-faq .faq-step__meta {
  margin: 14px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--faq-rule);
  font-size: 0.76rem;
  color: var(--c-steel);
}

/* ---------- 同步戳记 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 30px);
}

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  overflow: hidden;
  background: var(--c-panel);
}

.page-faq .faq-figure .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-figure .media-frame__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--c-line);
  font-size: 0.76rem;
  color: var(--c-steel);
}

.page-faq .faq-figure--wide {
  margin-bottom: clamp(20px, 3vw, 28px);
}

.page-faq .faq-stamp {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-stamp__item {
  padding: 14px 0;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-stamp__item:first-child {
  padding-top: 0;
}

.page-faq .faq-stamp__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-stamp__term {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
}

.page-faq .faq-stamp__desc {
  margin: 6px 0 0;
  font-size: 0.9rem;
  color: var(--faq-paper-soft);
}

.page-faq .faq-tip {
  margin: clamp(18px, 2.6vw, 24px) 0 0;
  padding: 12px 16px 12px 18px;
  border-left: 2px solid var(--c-gold);
  background: rgba(242, 196, 109, 0.06);
  font-size: 0.86rem;
  color: var(--faq-paper-soft);
}

/* ---------- 筛选 ---------- */
.page-faq .faq-filters {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .faq-filter {
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background: rgba(13, 21, 36, 0.74);
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-filter:hover {
  border-color: rgba(156, 124, 255, 0.5);
  background: rgba(13, 21, 36, 0.92);
}

.page-faq .faq-filter__label {
  margin: 0;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--c-violet);
}

.page-faq .faq-filter__title {
  margin: 8px 0 8px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-paper);
}

.page-faq .faq-filter__text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--faq-paper-soft);
}

.page-faq .faq-filter__foot {
  margin: 12px 0 0;
  font-size: 0.76rem;
  color: var(--c-steel);
}

.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

/* ---------- 会员权益 ---------- */
.page-faq .faq-benefits {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-benefit {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background: linear-gradient(200deg, rgba(13, 21, 36, 0.94), rgba(6, 10, 19, 0.7));
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-faq .faq-benefit:hover {
  border-color: rgba(242, 196, 109, 0.5);
  transform: translateY(-2px);
}

.page-faq .faq-benefit__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(242, 196, 109, 0.55);
  border-radius: 3px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-gold);
  background: rgba(242, 196, 109, 0.08);
}

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

.page-faq .faq-benefit__title {
  margin: 2px 0 8px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-paper);
}

.page-faq .faq-benefit__text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--faq-paper-soft);
}

.page-faq .faq-benefit__how {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--faq-rule);
  font-size: 0.84rem;
  color: rgba(143, 163, 183, 0.95);
}

.page-faq .faq-benefit__how .mono {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 6px;
  border: 1px solid var(--c-line);
  border-radius: 2px;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--c-gold);
}

/* ---------- 问答 ---------- */
.page-faq .faq-qa {
  display: grid;
  gap: 10px;
}

.page-faq .faq-q {
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background: rgba(13, 21, 36, 0.7);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-q[open] {
  border-color: var(--faq-cyan-rule);
  background: rgba(13, 21, 36, 0.94);
}

.page-faq .faq-q__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q__summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
  border-radius: 4px;
}

.page-faq .faq-q__idx {
  flex: none;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--c-violet);
}

.page-faq .faq-q__title {
  flex: 1;
  min-width: 0;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-paper);
}

.page-faq .faq-q__sign {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  background: var(--c-cyan);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.page-faq .faq-q__sign::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-q__sign::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-q[open] .faq-q__sign::after {
  transform: rotate(90deg);
  opacity: 0;
}

.page-faq .faq-q__body {
  padding: 0 16px 16px 44px;
  font-size: 0.9rem;
  color: var(--faq-paper-soft);
  border-top: 1px solid var(--faq-rule);
  padding-top: 14px;
}

.page-faq .faq-q__body p {
  margin: 0 0 10px;
}

.page-faq .faq-q__body p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-q__body ol,
.page-faq .faq-q__body ul {
  margin: 0 0 10px;
  padding-left: 20px;
}

.page-faq .faq-q__body li {
  margin-bottom: 6px;
}

.page-faq .faq-q__body li:last-child {
  margin-bottom: 0;
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-help {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 32px);
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background:
    linear-gradient(148deg, rgba(83, 243, 228, 0.09), rgba(156, 124, 255, 0.1) 58%, rgba(13, 21, 36, 0.92));
}

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

.page-faq .faq-help__title {
  margin: 0 0 10px;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--c-paper);
}

.page-faq .faq-help__text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--faq-paper-soft);
}

.page-faq .faq-help__channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.page-faq .faq-help__channel {
  display: block;
  padding: 12px 14px;
  border: 1px solid var(--c-line);
  border-radius: 3px;
  background: rgba(6, 10, 19, 0.62);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.5;
  word-break: break-word;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-help__channel span {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--c-steel);
}

.page-faq .faq-help__channel:hover {
  border-color: var(--c-cyan);
  background: rgba(83, 243, 228, 0.08);
}

.page-faq .faq-help__address {
  margin: 16px 0 0;
  font-size: 0.82rem;
  color: var(--c-steel);
}

.page-faq .faq-help__privacy {
  margin: 8px 0 0;
  font-size: 0.78rem;
  color: rgba(143, 163, 183, 0.9);
}

.page-faq .faq-help__side {
  min-width: 0;
  padding-top: clamp(16px, 2vw, 20px);
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-help__side-caption {
  margin: 0 0 12px;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--c-steel);
}

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

.page-faq .faq-help__stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-rule);
  font-size: 0.86rem;
  color: var(--faq-paper-soft);
}

.page-faq .faq-help__stat:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-help__stat strong {
  font-weight: 600;
  color: var(--c-paper);
}

.page-faq .faq-help__stat .mono {
  font-size: 0.82rem;
  color: var(--c-cyan);
}

.page-faq .faq-help__btn {
  display: inline-block;
  margin-top: 18px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-help__channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .faq-filter:first-child {
    grid-column: span 2;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: start;
  }

  .page-faq .faq-help__side {
    padding-top: 0;
    padding-left: clamp(18px, 2.4vw, 26px);
    border-top: 0;
    border-left: 1px solid var(--faq-rule);
  }

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

  .page-faq .faq-filter:first-child {
    grid-column: auto;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(190px, 226px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-terminal__hint {
    font-size: 0.72rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-benefit,
  .page-faq .faq-filter,
  .page-faq .faq-jump__link,
  .page-faq .faq-rail__link,
  .page-faq .faq-q,
  .page-faq .faq-q__sign::before,
  .page-faq .faq-q__sign::after,
  .page-faq .faq-help__channel {
    transition: none;
  }

  .page-faq .faq-step:hover,
  .page-faq .faq-benefit:hover {
    transform: none;
  }
}