.page-faq {
  --faq-glow: radial-gradient(120% 92% at 10% 0%, rgba(56, 242, 224, 0.16), transparent 62%);
  --faq-action-glow: radial-gradient(120% 100% at 100% 0%, rgba(255, 90, 54, 0.18), transparent 60%);
  --faq-card: rgba(10, 27, 43, 0.86);
  --faq-soft: rgba(16, 43, 66, 0.62);
  display: block;
  padding-bottom: clamp(3rem, 8vw, 6rem);
  background: var(--deep);
  color: var(--ink);
}

.page-faq .faq-wrap {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-top: clamp(1rem, 3vw, 1.75rem);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(1rem, 2.5vw, 1.75rem);
  padding: clamp(1.6rem, 5vw, 3.4rem) clamp(1.15rem, 4vw, 3rem);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-xl);
  background: var(--faq-glow), linear-gradient(158deg, var(--panel), var(--deep) 72%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    180deg,
    rgba(56, 242, 224, 0.05) 0 1px,
    transparent 1px 6px
  );
  opacity: 0.5;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 72%);
  mask-image: linear-gradient(180deg, #000, transparent 72%);
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-faq .faq-hero__title {
  margin: 0;
  max-width: 20ch;
  font-size: clamp(1.9rem, 6.4vw, 4.1rem);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-hero__lead {
  margin: 1.15rem 0 0;
  max-width: 60ch;
  font-size: clamp(0.95rem, 1.6vw, 1.05rem);
  line-height: 1.8;
  color: var(--ink-mute);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.9rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero__note {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__jump a {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 1rem 0.55rem 1.1rem;
  border: 1px solid var(--line-hard);
  border-radius: var(--capsule);
  color: var(--ink);
  font-size: 0.88rem;
  text-decoration: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-hero__jump a .mono {
  font-size: 0.68rem;
  color: var(--cyan);
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  background: rgba(56, 242, 224, 0.1);
  border-color: var(--cyan);
  outline: none;
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-block {
  margin-top: clamp(2.75rem, 7vw, 5rem);
}

.page-faq .faq-block__head {
  margin-bottom: clamp(1.4rem, 3vw, 2.2rem);
}

.page-faq .faq-block__no {
  display: inline-block;
  margin-bottom: 0.7rem;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-faq .faq-block__head h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  font-weight: 300;
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-faq .faq-block__head p {
  margin: 0.7rem 0 0;
  max-width: 56ch;
  color: var(--ink-mute);
  font-size: 0.94rem;
  line-height: 1.75;
}

/* ---------- 热门速查 ---------- */
.page-faq .faq-quick {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-faq .faq-quick__card {
  display: block;
  height: 100%;
  padding: 1.15rem 1.15rem 1.25rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: var(--faq-card);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-quick__card:hover,
.page-faq .faq-quick__card:focus-visible {
  border-color: var(--line-hard);
  background: linear-gradient(160deg, rgba(56, 242, 224, 0.09), var(--faq-card) 62%);
  transform: translateY(-3px);
  outline: none;
}

.page-faq .faq-quick__no {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-quick__q {
  margin: 0.6rem 0 0.45rem;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .faq-quick__a {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--ink-mute);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: clamp(1.4rem, 3vw, 2rem);
  padding: 0.55rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--capsule);
  background: var(--faq-soft);
}

.page-faq .faq-filter .filter-chip {
  padding: 0.42rem 0.95rem;
  border: 1px solid transparent;
  border-radius: var(--capsule);
  background: transparent;
  color: var(--ink-mute);
  font-family: var(--font-sans);
  font-size: 0.84rem;
  line-height: 1.4;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-faq .faq-filter .filter-chip:hover {
  color: var(--ink);
  border-color: var(--line-soft);
}

.page-faq .faq-filter .filter-chip[aria-pressed="true"] {
  background: rgba(56, 242, 224, 0.14);
  border-color: rgba(56, 242, 224, 0.5);
  color: var(--cyan-soft);
}

.page-faq .faq-filter .filter-chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-filter__status {
  margin-left: auto;
  padding-right: 0.4rem;
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 2.6rem);
  align-items: start;
}

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

.page-faq .faq-group + .faq-group {
  margin-top: clamp(1.9rem, 4vw, 2.8rem);
}

.page-faq .faq-group__head {
  padding-left: 0.1rem;
  margin-bottom: 1rem;
}

.page-faq .faq-group__head h3 {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin: 0;
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  font-weight: 400;
  letter-spacing: -0.01em;
}

.page-faq .faq-group__letter {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-group__head p {
  margin: 0.4rem 0 0 2rem;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-qa {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: var(--faq-card);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-qa + .faq-qa {
  margin-top: 0.6rem;
}

.page-faq .faq-qa[open] {
  border-color: var(--line-hard);
  background: linear-gradient(170deg, rgba(16, 43, 66, 0.9), var(--faq-card) 70%);
}

.page-faq .faq-qa summary {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem 1.05rem;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-qa__no {
  flex: none;
  padding-top: 0.18rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-qa__q {
  flex: 1;
  font-size: 0.97rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-qa__mark {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 0.42rem;
}

.page-faq .faq-qa__mark::before,
.page-faq .faq-qa__mark::after {
  content: "";
  position: absolute;
  inset: 50% 0 auto 0;
  height: 1.5px;
  background: var(--cyan);
  transform: translateY(-50%);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .faq-qa__mark::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-qa[open] .faq-qa__mark::after {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}

.page-faq .faq-qa__a {
  padding: 0 1.05rem 1.2rem 2.62rem;
  animation: faq-reveal var(--dur) var(--ease) both;
}

.page-faq .faq-qa__a p {
  margin: 0 0 0.75rem;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--ink-mute);
}

.page-faq .faq-qa__a p:first-child {
  color: var(--ink);
}

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

.page-faq .faq-qa__a a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-steps {
  margin: 0 0 0.8rem;
  padding: 0;
  list-style: none;
  counter-reset: faq-step;
}

.page-faq .faq-steps li {
  position: relative;
  padding: 0.35rem 0 0.35rem 1.8rem;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--ink-mute);
  counter-increment: faq-step;
}

.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: rgba(56, 242, 224, 0.7);
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 插图 ---------- */
.page-faq .faq-figure {
  margin: 1.1rem 0 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: var(--faq-card);
  overflow: hidden;
}

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

.page-faq .faq-figure figcaption {
  padding: 0.8rem 1rem 0.95rem;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--ink-mute);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 侧栏术语卡 ---------- */
.page-faq .faq-layout__side {
  display: grid;
  gap: 0.9rem;
  min-width: 0;
}

.page-faq .faq-side {
  padding: 1.15rem 1.15rem 1.25rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: var(--faq-soft);
}

.page-faq .faq-side--links {
  background: transparent;
  border-style: dashed;
}

.page-faq .faq-side__title {
  margin: 0 0 0.9rem;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-terms {
  margin: 0;
  display: grid;
  gap: 0.85rem;
}

.page-faq .faq-term dt {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.page-faq .faq-term dd {
  margin: 0.28rem 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--ink-mute);
}

.page-faq .faq-side__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.1rem;
}

.page-faq .faq-side__list a {
  display: block;
  padding: 0.45rem 0;
  font-size: 0.88rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-faq .faq-side__list a:hover,
.page-faq .faq-side__list a:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--line-hard);
  outline: none;
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-support {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}

.page-faq .faq-support__card {
  padding: clamp(1.2rem, 3vw, 1.8rem);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: var(--faq-card);
}

.page-faq .faq-support__card--mail {
  background: var(--faq-action-glow), linear-gradient(160deg, rgba(255, 90, 54, 0.14), var(--faq-card) 66%);
  border-color: rgba(255, 90, 54, 0.4);
}

.page-faq .faq-support__label {
  margin: 0 0 0.6rem;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--action-soft);
}

.page-faq .faq-support__mail {
  display: inline-block;
  font-size: clamp(1rem, 2.6vw, 1.4rem);
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid rgba(255, 90, 54, 0.55);
  padding-bottom: 0.15rem;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-faq .faq-support__mail:hover,
.page-faq .faq-support__mail:focus-visible {
  color: var(--action-soft);
  border-color: var(--action-soft);
  outline: none;
}

.page-faq .faq-support__phone {
  margin: 0;
  font-size: clamp(1rem, 2.6vw, 1.35rem);
  letter-spacing: 0.04em;
  color: var(--cyan-soft);
}

.page-faq .faq-support__desc {
  margin: 0.8rem 0 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--ink-mute);
}

.page-faq .faq-report {
  margin-top: 1.1rem;
  padding: clamp(1.15rem, 3vw, 1.7rem);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: var(--faq-soft);
}

.page-faq .faq-report__title {
  margin: 0 0 0.9rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink);
}

.page-faq .faq-report__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-report__steps li {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}

.page-faq .faq-report__steps .mono {
  flex: none;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-report__steps p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--ink-mute);
}

.page-faq .faq-toplink {
  margin: 1.6rem 0 0;
}

.page-faq .faq-toplink a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.1rem;
  border: 1px solid var(--line-hard);
  border-radius: var(--capsule);
  font-size: 0.82rem;
  color: var(--ink);
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-faq .faq-toplink a:hover,
.page-faq .faq-toplink a:focus-visible {
  background: rgba(56, 242, 224, 0.1);
  border-color: var(--cyan);
  outline: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }

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

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

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

  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: clamp(2rem, 4vw, 3rem);
  }

  .page-faq .faq-layout__side {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-faq .faq-qa summary {
    padding: 1.1rem 1.3rem;
  }

  .page-faq .faq-qa__a {
    padding: 0 1.3rem 1.35rem 3rem;
  }

  .page-faq .faq-figure {
    margin-top: 1.4rem;
  }

  .page-faq .faq-group__head p {
    margin-left: 2.1rem;
  }
}

@media (min-width: 1140px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 330px;
  }

  .page-faq .faq-hero__lead {
    font-size: 1.05rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-qa__a {
    animation: none;
  }

  .page-faq .faq-quick__card:hover,
  .page-faq .faq-quick__card:focus-visible {
    transform: none;
  }
}
<<<END>>>