.page-faq {
  --faq-line: rgba(0, 229, 212, .22);
  --faq-panel: rgba(10, 31, 58, .72);
  --faq-dim: #b9cbdd;
  background: var(--cs-deep);
  color: var(--cs-ink);
  font-size: 1rem;
  line-height: 1.7;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  margin: 0;
  font-family: var(--cs-sans);
  color: var(--cs-fog);
  letter-spacing: -.02em;
  line-height: 1.18;
}

.page-faq p { margin: 0; }

.page-faq ul,
.page-faq ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq a { color: var(--cs-cyan); }

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 1.1rem 0 2.2rem;
  background:
    radial-gradient(120% 80% at 92% -20%, rgba(0, 229, 212, .18), transparent 58%),
    radial-gradient(90% 70% at -10% 110%, rgba(108, 92, 231, .22), transparent 60%),
    linear-gradient(165deg, #061426 0%, #0A1F3A 55%, #0B3B3A 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(242, 247, 255, .08) 1px, transparent 1px);
  background-size: 4px 4px;
  opacity: .55;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  top: -20%;
  width: 60%;
  height: 140%;
  transform: rotate(-8deg);
  background: linear-gradient(200deg, rgba(255, 107, 74, .18), transparent 58%);
  pointer-events: none;
}

.page-faq .faq-hero__inner { position: relative; z-index: 1; }

.page-faq .faq-hero__grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.3rem;
}

.page-faq h1 {
  font-size: clamp(1.85rem, 6.4vw, 3.3rem);
  font-weight: 800;
  max-width: 15em;
  margin-top: .55rem;
}

.page-faq .faq-hero__lede {
  margin-top: 1rem;
  max-width: 36em;
  color: var(--faq-dim);
  font-size: 1rem;
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .6rem;
  margin-top: 1.15rem;
}

.page-faq .faq-hero__facts li {
  font-family: var(--cs-mono);
  font-size: .74rem;
  letter-spacing: .02em;
  color: var(--cs-cyan);
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  padding: .3rem .68rem;
  background: rgba(0, 229, 212, .06);
}

/* 热门问题卡 */
.page-faq .faq-hot {
  border: 1px solid var(--faq-line);
  border-radius: var(--cs-radius-lg);
  padding: 1rem .9rem 1.1rem;
  background: linear-gradient(165deg, rgba(10, 31, 58, .96), rgba(6, 20, 38, .96));
  box-shadow: 0 26px 60px -34px rgba(0, 229, 212, .55);
}

.page-faq .faq-hot__title {
  font-family: var(--cs-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--cs-gold);
  padding: 0 .5rem .55rem;
}

.page-faq .faq-hot__item {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .62rem .55rem;
  border-radius: 12px;
  border: 1px solid transparent;
  text-decoration: none;
  color: var(--cs-fog);
  font-size: .95rem;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}

.page-faq .faq-hot__item:hover,
.page-faq .faq-hot__item:focus-visible {
  background: rgba(0, 229, 212, .09);
  border-color: rgba(0, 229, 212, .45);
  transform: translateX(2px);
  outline: none;
}

.page-faq .faq-hot__idx {
  font-family: var(--cs-mono);
  font-size: .78rem;
  font-weight: 700;
  color: var(--cs-cyan);
}

.page-faq .faq-hot__text { flex: 1 1 auto; }

.page-faq .faq-hot__arrow {
  color: var(--cs-coral);
  font-size: .9rem;
}

.page-faq .faq-hot__foot {
  margin-top: .55rem;
  padding: .55rem .5rem 0;
  border-top: 1px dashed var(--cs-line);
  font-size: .78rem;
  color: var(--cs-slate);
  line-height: 1.6;
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-main { padding: clamp(1.6rem, 5vw, 3rem) 0 clamp(1.8rem, 5vw, 3rem); }

.page-faq .faq-main__grid {
  display: grid;
  gap: 1.5rem;
}

/* 问题索引：移动端横向条，桌面纵向贴顶 */
.page-faq .faq-rail {
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  padding-bottom: .35rem;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail__label { display: none; }

.page-faq .faq-rail__list {
  display: flex;
  gap: .5rem;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: center;
  gap: .42rem;
  white-space: nowrap;
  padding: .48rem .78rem;
  border: 1px solid var(--cs-line);
  border-radius: 999px;
  color: var(--faq-dim);
  font-size: .84rem;
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-color: rgba(0, 229, 212, .5);
  color: var(--cs-cyan);
  background: rgba(0, 229, 212, .07);
  outline: none;
}

.page-faq .faq-rail__n {
  font-family: var(--cs-mono);
  font-size: .72rem;
  color: var(--cs-coral);
}

.page-faq .faq-rail__help {
  display: none;
  margin-top: 1.4rem;
  padding: .9rem;
  border: 1px solid var(--cs-line);
  border-radius: 16px;
  background: rgba(11, 59, 58, .45);
}

.page-faq .faq-rail__help-title {
  font-size: .88rem;
  font-weight: 700;
  color: var(--cs-fog);
}

.page-faq .faq-rail__help-text {
  margin-top: .35rem;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--cs-slate);
}

.page-faq .faq-rail__help-btn {
  margin-top: .7rem;
  width: 100%;
  justify-content: center;
  font-size: .82rem;
}

/* 筛选命令条 */
.page-faq .faq-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .6rem;
  padding: 0 0 1rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px dashed var(--cs-line);
}

.page-faq .faq-toolbar__label {
  font-family: var(--cs-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--cs-slate);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  margin-bottom: 2.2rem;
  scroll-margin-top: 92px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: .65rem;
}

.page-faq .faq-group__idx {
  font-family: var(--cs-mono);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--cs-coral);
}

.page-faq .faq-group h2 {
  font-size: clamp(1.18rem, 4.4vw, 1.6rem);
  font-weight: 700;
}

.page-faq .faq-group__note {
  margin-top: .45rem;
  margin-bottom: .95rem;
  font-size: .85rem;
  color: var(--cs-slate);
}

.page-faq .faq-subhead {
  margin: 1.5rem 0 .8rem;
  padding-left: .7rem;
  border-left: 3px solid var(--cs-gold);
  font-size: 1rem;
  font-weight: 700;
  color: var(--cs-gold);
  scroll-margin-top: 92px;
}

.page-faq .faq-group__more {
  margin-top: .9rem;
  font-size: .88rem;
}

.page-faq .faq-group__more a { text-decoration: none; }
.page-faq .faq-group__more a:hover { text-decoration: underline; }

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  margin-bottom: .6rem;
  border: 1px solid var(--cs-line);
  border-radius: 16px;
  background: var(--faq-panel);
  transition: border-color .25s ease, box-shadow .25s ease;
}

.page-faq .faq-item:hover { border-color: rgba(0, 229, 212, .35); }

.page-faq .faq-item:has([data-open]) {
  border-color: rgba(0, 229, 212, .55);
  box-shadow: 0 0 0 1px rgba(0, 229, 212, .12) inset, 0 18px 40px -32px rgba(0, 229, 212, .9);
}

.page-faq .faq-q {
  display: flex;
  gap: .6rem;
  align-items: flex-start;
  width: 100%;
  padding: .9rem 1rem;
  background: none;
  border: 0;
  color: var(--cs-fog);
  font-size: .95rem;
  font-weight: 600;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--cs-cyan);
  outline-offset: 2px;
  border-radius: 14px;
}

.page-faq .faq-q__num {
  flex: 0 0 auto;
  min-width: 1.5rem;
  font-family: var(--cs-mono);
  font-size: .76rem;
  font-weight: 700;
  color: var(--cs-cyan);
  padding-top: .22rem;
}

.page-faq .faq-q__text { flex: 1 1 auto; }

.page-faq .faq-q__sign {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: .38rem;
  margin-left: .3rem;
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  background: var(--cs-cyan);
  border-radius: 2px;
  transition: transform .25s ease, background .25s 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[aria-expanded="true"] .faq-q__sign::after { transform: scaleY(0); }
.page-faq .faq-q[aria-expanded="true"] .faq-q__sign::before { background: var(--cs-coral); }

.page-faq .faq-a__inner {
  position: relative;
  padding: .1rem 1rem 1.1rem 2.9rem;
}

.page-faq .faq-a__inner::before {
  content: "";
  position: absolute;
  left: 1.95rem;
  top: .05rem;
  bottom: .8rem;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cs-cyan), rgba(0, 229, 212, 0));
  opacity: .65;
}

.page-faq .faq-a__inner p {
  font-size: .93rem;
  line-height: 1.75;
  color: var(--faq-dim);
}

.page-faq .faq-a__inner p + p { margin-top: .6rem; }
.page-faq .faq-a__inner a { text-decoration: none; }
.page-faq .faq-a__inner a:hover { text-decoration: underline; }

/* 步骤卡 */
.page-faq .faq-steps {
  display: grid;
  gap: .6rem;
  margin-top: .9rem;
}

.page-faq .faq-step {
  display: grid;
  gap: .18rem;
  padding: .75rem .8rem;
  border: 1px solid rgba(0, 229, 212, .26);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(0, 229, 212, .08), rgba(0, 229, 212, 0));
}

.page-faq .faq-step__num {
  font-family: var(--cs-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--cs-gold);
}

.page-faq .faq-step__title {
  font-size: .88rem;
  font-weight: 700;
  color: var(--cs-fog);
}

.page-faq .faq-step__text {
  font-size: .82rem;
  line-height: 1.6;
  color: var(--cs-slate);
}

/* 两步路径 */
.page-faq .faq-path {
  display: grid;
  gap: .55rem;
  margin-bottom: .9rem;
}

.page-faq .faq-path li {
  display: flex;
  gap: .6rem;
  align-items: flex-start;
  font-size: .9rem;
  color: var(--faq-dim);
}

.page-faq .faq-path__n {
  font-family: var(--cs-mono);
  font-weight: 700;
  color: var(--cs-coral);
}

/* 联系信息格 */
.page-faq .faq-contact {
  display: grid;
  gap: .55rem;
}

.page-faq .faq-contact__cell {
  padding: .7rem .8rem;
  border: 1px solid var(--cs-line);
  border-radius: 12px;
  background: rgba(6, 20, 38, .62);
}

.page-faq .faq-contact__key {
  display: block;
  margin-bottom: .2rem;
  font-family: var(--cs-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--cs-slate);
}

.page-faq .faq-contact__val {
  display: block;
  font-size: .9rem;
  color: var(--cs-fog);
  word-break: break-word;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 1.1rem 0 0;
  border: 1px solid var(--cs-line);
  border-radius: var(--cs-radius);
  overflow: hidden;
  background:
    radial-gradient(circle at 26% 18%, rgba(0, 229, 212, .2), transparent 62%),
    #0A1F3A;
}

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

.page-faq .faq-figure figcaption {
  padding: .6rem .85rem .7rem;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--cs-slate);
  border-top: 1px solid var(--cs-line);
}

/* ---------- 客服收束块 ---------- */
.page-faq .faq-support {
  position: relative;
  overflow: hidden;
  margin-top: 1.4rem;
  padding: 1.15rem;
  border: 1px solid rgba(255, 107, 74, .32);
  border-radius: var(--cs-radius-lg);
  background: linear-gradient(135deg, #0B3B3A 0%, #0A1F3A 56%, #061426 100%);
}

.page-faq .faq-support::after {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -40%;
  width: 62%;
  height: 130%;
  transform: rotate(-12deg);
  background: linear-gradient(160deg, rgba(255, 107, 74, .22), transparent 62%);
  pointer-events: none;
}

.page-faq .faq-support__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1rem;
}

.page-faq .faq-support__copy h3 {
  margin-top: .4rem;
  font-size: clamp(1.05rem, 4vw, 1.4rem);
  font-weight: 700;
}

.page-faq .faq-support__copy p:not(.cs-eyebrow) {
  margin-top: .5rem;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--faq-dim);
}

.page-faq .faq-support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin-top: .9rem;
}

.page-faq .faq-figure--tight { margin-top: 0; }

/* ---------- 收尾 ---------- */
.page-faq .faq-next {
  padding: clamp(2rem, 6vw, 3.2rem) 0 clamp(2rem, 6vw, 3rem);
  background:
    radial-gradient(80% 90% at 100% 0%, rgba(0, 229, 212, .16), transparent 62%),
    linear-gradient(180deg, #0B3B3A 0%, #061426 82%);
  clip-path: polygon(0 3%, 100% 0, 100% 100%, 0 100%);
}

.page-faq .faq-next__inner {
  display: grid;
  gap: 1.1rem;
}

.page-faq .faq-next__copy h2 {
  margin-top: .45rem;
  font-size: clamp(1.3rem, 5vw, 1.9rem);
  font-weight: 800;
}

.page-faq .faq-next__copy p:not(.cs-eyebrow) {
  margin-top: .5rem;
  font-size: .92rem;
  color: var(--faq-dim);
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
}

/* ---------- 更大屏幕 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__lede { font-size: 1.05rem; }
  .page-faq .faq-steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-faq .faq-contact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 820px) {
  .page-faq .faq-support { padding: 1.6rem; }
  .page-faq .faq-support__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: center;
    gap: 1.6rem;
  }
  .page-faq .faq-next__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 2rem;
  }
  .page-faq .faq-next__actions { justify-content: flex-end; }
}

@media (min-width: 900px) {
  .page-faq .faq-hero { padding: 1.4rem 0 3.4rem; }
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, .82fr);
    align-items: start;
    gap: 2.6rem;
    margin-top: 1.8rem;
  }
  .page-faq .faq-hot {
    margin-top: 1.1rem;
    transform: translateY(.5rem);
  }
  .page-faq .faq-main__grid {
    grid-template-columns: 218px minmax(0, 1fr);
    align-items: start;
    gap: 2.6rem;
  }
  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: 88px;
    overflow: visible;
    padding: 0 0 0 1rem;
    border-left: 2px solid var(--faq-line);
  }
  .page-faq .faq-rail__label { display: block; margin-bottom: .7rem; }
  .page-faq .faq-rail__list { display: grid; gap: .1rem; }
  .page-faq .faq-rail__link {
    border: 0;
    border-radius: 9px;
    padding: .42rem .5rem;
    font-size: .88rem;
    white-space: normal;
  }
  .page-faq .faq-rail__help { display: block; }
  .page-faq .faq-q { font-size: 1rem; padding: 1rem 1.15rem; }
  .page-faq .faq-a__inner { padding: .1rem 1.15rem 1.2rem 3.05rem; }
  .page-faq .faq-a__inner::before { left: 2.1rem; }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hot__item,
  .page-faq .faq-item,
  .page-faq .faq-q__sign::before,
  .page-faq .faq-q__sign::after,
  .page-faq .faq-rail__link {
    transition: none;
  }
  .page-faq .faq-hot__item:hover,
  .page-faq .faq-hot__item:focus-visible,
  .page-faq .faq-hot { transform: none; }
}
<<<END>>>