.page-faq {
  color: var(--c-ice);
  background: var(--c-space);
}

/* ---------- 页头 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 5vw, 64px) 0 clamp(38px, 6vw, 76px);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(90% 120% at 88% 0%, rgba(139, 92, 246, 0.20), transparent 62%),
    radial-gradient(70% 100% at 4% 100%, rgba(34, 211, 238, 0.12), transparent 66%),
    var(--c-space);
}

.page-faq .faq-hero__visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-faq .faq-hero__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  filter: saturate(1.2) contrast(1.05);
  -webkit-mask-image: radial-gradient(72% 92% at 80% 24%, #000 0%, rgba(0, 0, 0, 0.35) 46%, transparent 76%);
  mask-image: radial-gradient(72% 92% at 80% 24%, #000 0%, rgba(0, 0, 0, 0.35) 46%, transparent 76%);
}

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

.page-faq .faq-hero__copy {
  max-width: 62ch;
}

.page-faq .breadcrumb {
  font-size: 13px;
  color: var(--c-mist);
}

.page-faq .breadcrumb a {
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-faq .faq-hero__eyebrow {
  margin: 22px 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-aurora);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--c-ice);
  text-shadow: 0 0 44px rgba(139, 92, 246, 0.38);
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--c-mist);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 48px);
  margin-top: clamp(26px, 4vw, 40px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .fact {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px;
}

.page-faq .fact__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 3.4vw, 36px);
  line-height: 1;
  color: var(--c-orange);
}

.page-faq .fact__unit {
  font-size: 13px;
  color: var(--c-orange);
  opacity: 0.86;
}

.page-faq .fact__label {
  flex: 1 0 100%;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--c-mist);
}

/* ---------- 快速开始 ---------- */
.page-faq .faq-quick {
  padding: clamp(44px, 6vw, 84px) 0 clamp(36px, 5vw, 64px);
  background: linear-gradient(180deg, rgba(14, 21, 48, 0.72), rgba(7, 11, 26, 0) 88%);
}

.page-faq .faq-quick__head {
  max-width: 66ch;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-faq .faq-quick__head h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.24;
  color: var(--c-ice);
}

.page-faq .faq-quick__head p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-mist);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-step {
  position: relative;
  padding: 24px 22px 26px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background:
    linear-gradient(158deg, rgba(139, 92, 246, 0.14), rgba(7, 11, 26, 0) 62%),
    var(--c-navy);
  box-shadow: inset 0 1px 0 rgba(244, 247, 255, 0.05), 0 14px 34px -26px rgba(34, 211, 238, 0.9);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

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

.page-faq .faq-step__num {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 4.6vw, 46px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--c-cyan);
  letter-spacing: 0.02em;
}

.page-faq .faq-step h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.4;
  color: var(--c-ice);
}

.page-faq .faq-step p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-mist);
}

.page-faq .faq-step__link {
  display: inline-block;
  font-size: 13.5px;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(34, 211, 238, 0.55);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-step__link:hover,
.page-faq .faq-step__link:focus-visible {
  color: var(--c-ice);
  border-bottom-color: var(--c-ice);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding: clamp(36px, 5vw, 72px) 0 clamp(56px, 8vw, 110px);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

/* 移动端：顶部胶囊 */
.page-faq .faq-nav {
  border-top: 1px solid var(--line-soft);
  padding-top: 18px;
}

.page-faq .faq-nav__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-aurora);
}

.page-faq .faq-nav__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  white-space: nowrap;
  font-size: 13.5px;
  color: var(--c-ice);
  text-decoration: none;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: rgba(14, 21, 48, 0.66);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-nav__link:hover,
.page-faq .faq-nav__link:focus-visible {
  border-color: var(--c-orange);
  color: var(--c-ice);
  background: rgba(255, 138, 61, 0.10);
  outline: none;
}

.page-faq .faq-nav__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-violet);
}

.page-faq .faq-nav__foot {
  margin-top: 20px;
  padding: 18px 0 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-nav__foot p {
  margin: 0 0 12px;
  font-size: 13.5px;
  color: var(--c-mist);
}

/* 分组 */
.page-faq .faq-group {
  margin-bottom: clamp(38px, 6vw, 68px);
  scroll-margin-top: calc(var(--bar-h) + 24px);
}

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

.page-faq .faq-group__head {
  margin-bottom: 6px;
  padding-left: 2px;
}

.page-faq .faq-group__idx {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--c-violet);
}

.page-faq .faq-group h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.28;
  color: var(--c-ice);
}

.page-faq .faq-group__sub {
  margin: 0 0 20px;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-mist);
}

/* 手风琴 */
.page-faq .qa {
  position: relative;
  padding-left: 20px;
  border-top: 1px solid var(--line-soft);
  background: transparent;
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--c-cyan), var(--c-violet));
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.4s var(--ease);
}

.page-faq .qa[open]::before {
  transform: scaleY(1);
}

.page-faq .qa:last-of-type {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 2px 20px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15.5px, 1.7vw, 18.5px);
  line-height: 1.55;
  color: var(--c-ice);
  transition: color 0.25s var(--ease);
}

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

.page-faq .qa__q::after {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 8px;
  border-right: 2px solid var(--c-cyan);
  border-bottom: 2px solid var(--c-cyan);
  transform: rotate(45deg);
  transition: transform 0.3s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  transform: rotate(-135deg);
}

.page-faq .qa__q:hover {
  color: var(--c-aurora);
}

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

.page-faq .qa__a {
  padding: 0 0 22px;
  max-width: 68ch;
}

.page-faq .qa__a p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--c-mist);
}

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

/* 移动端收藏配图 */
.page-faq .faq-figure {
  margin: 26px auto 0;
  max-width: 280px;
  padding: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-m);
  border: 1px solid var(--line-soft);
  box-shadow: 0 22px 48px -32px rgba(34, 211, 238, 0.9);
}

.page-faq .faq-figure figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  text-align: center;
  color: var(--c-mist);
}

/* 联系信息条 */
.page-faq .contact-strip {
  margin: 4px 0 22px;
  padding: 4px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-l);
  background:
    linear-gradient(150deg, rgba(34, 211, 238, 0.12), rgba(7, 11, 26, 0) 58%),
    var(--c-navy);
}

.page-faq .contact-strip__row {
  display: grid;
  gap: 4px;
  padding: 15px 0;
  border-bottom: 1px solid rgba(196, 181, 253, 0.12);
}

.page-faq .contact-strip__row:last-child {
  border-bottom: 0;
}

.page-faq .contact-strip__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--c-aurora);
}

.page-faq .contact-strip__val {
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-ice);
  word-break: break-word;
}

.page-faq .contact-strip__val--mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.01em;
  color: var(--c-cyan);
}

/* 法律文件卡片 */
.page-faq .legal-cards {
  display: grid;
  gap: 14px;
  margin: 4px 0 22px;
}

.page-faq .legal-card {
  display: grid;
  gap: 8px;
  padding: 20px 20px 22px;
  text-decoration: none;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-m);
  background: linear-gradient(160deg, rgba(139, 92, 246, 0.12), rgba(7, 11, 26, 0) 68%);
  transition: border-color 0.28s var(--ease), transform 0.28s var(--ease);
}

.page-faq .legal-card:hover,
.page-faq .legal-card:focus-visible {
  border-color: var(--line-cyan);
  transform: translateY(-2px);
  outline: none;
}

.page-faq .legal-card__tag {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16.5px;
  color: var(--c-ice);
}

.page-faq .legal-card__text {
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-mist);
}

.page-faq .legal-card__go {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-steps .faq-step:last-child {
    grid-column: 1 / -1;
  }

  .page-faq .contact-strip__row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-steps .faq-step:last-child {
    grid-column: auto;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(176px, 236px) minmax(0, 1fr);
    gap: clamp(32px, 4.5vw, 72px);
    align-items: start;
  }

  .page-faq .faq-nav {
    position: sticky;
    top: calc(var(--bar-h) + 28px);
    align-self: start;
    border-top: 0;
    padding-top: 0;
  }

  .page-faq .faq-nav__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-nav__link {
    width: 100%;
    padding: 12px 0 12px 16px;
    border: 0;
    border-left: 1px solid var(--line-soft);
    border-radius: 0;
    background: transparent;
    white-space: normal;
    transition: border-color 0.25s var(--ease), color 0.25s var(--ease), padding-left 0.25s var(--ease);
  }

  .page-faq .faq-nav__link:hover,
  .page-faq .faq-nav__link:focus-visible {
    border-left-color: var(--c-cyan);
    background: transparent;
    color: var(--c-cyan);
    padding-left: 20px;
  }

  .page-faq .faq-nav__foot {
    margin-top: 24px;
    padding-left: 16px;
  }

  .page-faq .faq-group--visual {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 248px;
    column-gap: clamp(26px, 3.4vw, 48px);
    align-items: start;
  }

  .page-faq .faq-group--visual .faq-group__head,
  .page-faq .faq-group--visual .qa {
    grid-column: 1;
  }

  .page-faq .faq-group--visual .faq-figure {
    grid-column: 2;
    grid-row: 1 / -1;
    margin: 8px 0 0;
    max-width: 100%;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero__copy {
    max-width: 58ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .qa::before,
  .page-faq .qa__q::after,
  .page-faq .legal-card,
  .page-faq .faq-nav__link {
    transition: none;
  }

  .page-faq .faq-step:hover,
  .page-faq .legal-card:hover {
    transform: none;
  }
}
<<<END>>>