.page-faq {
  --faq-rule: var(--nd-line-soft);
  --faq-glow: rgba(22, 199, 193, .16);
  color: var(--nd-snow);
  background: var(--nd-ink);
}

.page-faq .faq-h2 {
  font-family: var(--nd-display);
  font-weight: 300;
  font-size: clamp(1.5rem, 4.6vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: .005em;
  margin: 0;
  color: var(--nd-snow);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(1.75rem, 5vw, 3.5rem) 0 clamp(1.5rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-hero__title {
  font-family: var(--nd-display);
  font-weight: 300;
  font-size: clamp(2rem, 7.2vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -.012em;
  margin: .8rem 0 0;
  max-width: 16ch;
  color: var(--nd-snow);
}

.page-faq .faq-hero__lede {
  margin: 1.25rem 0 0;
  max-width: 60ch;
  font-size: clamp(.94rem, 2.1vw, 1.03rem);
  line-height: 1.85;
  color: var(--nd-mist);
}

.page-faq .faq-hero__index {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--faq-rule);
  border: 1px solid var(--faq-rule);
}

.page-faq .faq-hero__index > li {
  background: var(--nd-ink);
  padding: .85rem .9rem 1rem;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.page-faq .faq-hero__val {
  font-family: var(--nd-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  font-size: clamp(1rem, 3.2vw, 1.35rem);
  letter-spacing: .01em;
  color: var(--nd-cyan);
}

.page-faq .faq-hero__key {
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--nd-mist);
}

/* ---------- 六组索引 ---------- */
.page-faq .faq-groups__head {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  max-width: 62ch;
  margin-bottom: clamp(1.5rem, 4vw, 2.4rem);
}

.page-faq .faq-groups__sub {
  margin: 0;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--nd-mist);
}

.page-faq .faq-groups__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-group {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) auto;
  grid-template-areas:
    "num name count"
    "num desc desc";
  align-items: baseline;
  gap: .2rem .85rem;
  padding: 1.05rem .25rem 1.1rem;
  border-bottom: 1px solid var(--faq-rule);
  border-left: 2px solid transparent;
  transition: border-left-color .22s ease, background-color .22s ease;
}

.page-faq .faq-group:hover,
.page-faq .faq-group:focus-within {
  border-left-color: var(--nd-cyan);
  background: rgba(11, 61, 102, .38);
}

.page-faq .faq-group__num {
  grid-area: num;
  font-family: var(--nd-mono);
  font-variant-numeric: tabular-nums;
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--nd-cyan);
}

.page-faq .faq-group__name {
  grid-area: name;
  font-family: var(--nd-display);
  font-weight: 400;
  font-size: clamp(1.05rem, 2.6vw, 1.28rem);
  letter-spacing: .01em;
  margin: 0;
  color: var(--nd-snow);
}

.page-faq .faq-group__desc {
  grid-area: desc;
  margin: .28rem 0 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--nd-mist);
}

.page-faq .faq-group__count {
  grid-area: count;
  font-family: var(--nd-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--nd-gold);
  white-space: nowrap;
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-path__inner {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3rem);
  align-items: start;
}

.page-faq .faq-path__lede {
  margin: 1rem 0 0;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--nd-mist);
  max-width: 52ch;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-steps > li {
  display: grid;
  grid-template-columns: 4.3rem minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num text";
  gap: .3rem .85rem;
  padding: 1rem 0 1.15rem;
  border-bottom: 1px solid var(--faq-rule);
  position: relative;
}

.page-faq .faq-steps__num {
  grid-area: num;
  font-family: var(--nd-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--nd-cyan);
  padding-top: .35rem;
}

.page-faq .faq-steps > li h3 {
  grid-area: title;
  margin: 0;
  font-size: .98rem;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--nd-snow);
}

.page-faq .faq-steps > li p {
  grid-area: text;
  margin: 0;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--nd-mist);
}

.page-faq .faq-path__figure {
  margin: 0;
  border: 1px solid var(--faq-rule);
  background: var(--nd-blue);
  overflow: hidden;
}

.page-faq .faq-path__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-faq .faq-path__figure figcaption {
  padding: .7rem .9rem .8rem;
  border-top: 1px solid var(--faq-rule);
  font-family: var(--nd-mono);
  font-size: .72rem;
  letter-spacing: .05em;
  line-height: 1.6;
  color: var(--nd-mist);
}

/* ---------- 问答标签页 ---------- */
.page-faq .faq-answers__head {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  max-width: 60ch;
}

.page-faq .faq-answers__sub {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--nd-mist);
}

.page-faq .faq-tabs {
  display: grid;
  gap: 1.4rem;
  margin-top: clamp(1.4rem, 4vw, 2.2rem);
}

.page-faq .faq-tablist {
  display: flex;
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--faq-rule);
  border: 1px solid var(--faq-rule);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .nd-tab.faq-tab {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: auto auto auto;
  align-items: center;
  gap: .55rem;
  padding: .8rem .9rem;
  background: var(--nd-blue);
  border: 0;
  border-left: 2px solid transparent;
  border-radius: 0;
  color: var(--nd-mist);
  font-family: var(--nd-body);
  font-size: .84rem;
  line-height: 1.3;
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
  transition: color .2s ease, background-color .2s ease, border-left-color .2s ease;
}

.page-faq .nd-tab.faq-tab:hover {
  color: var(--nd-snow);
  background: rgba(22, 199, 193, .1);
}

.page-faq .nd-tab.faq-tab[aria-selected="true"] {
  background: var(--nd-ink);
  color: var(--nd-snow);
  border-left-color: var(--nd-cyan);
}

.page-faq .nd-tab.faq-tab:focus-visible {
  outline: 2px solid var(--nd-cyan);
  outline-offset: -3px;
}

.page-faq .faq-tab__num {
  font-family: var(--nd-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--nd-cyan);
}

.page-faq .faq-tab__count {
  font-family: var(--nd-mono);
  font-size: .68rem;
  color: var(--nd-gold);
}

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

.page-faq .faq-panel:focus-visible {
  outline: 2px solid var(--nd-cyan);
  outline-offset: 4px;
}

.page-faq .faq-panel__title {
  font-family: var(--nd-display);
  font-weight: 400;
  font-size: clamp(1.15rem, 3vw, 1.4rem);
  letter-spacing: .02em;
  margin: 0 0 .5rem;
  color: var(--nd-cyan);
}

.page-faq .faq-q {
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-q:last-child {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-q__q {
  display: grid;
  grid-template-columns: 1.8rem minmax(0, 1fr) 16px;
  align-items: baseline;
  gap: .6rem;
  padding: .95rem 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(.92rem, 2.2vw, 1rem);
  line-height: 1.65;
  color: var(--nd-snow);
  transition: color .2s ease;
}

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

.page-faq .faq-q__q:hover {
  color: var(--nd-cyan);
}

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

.page-faq .faq-q__num {
  font-family: var(--nd-mono);
  font-variant-numeric: tabular-nums;
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--nd-mist);
}

.page-faq .faq-q[open] .faq-q__num {
  color: var(--nd-cyan);
}

.page-faq .faq-q__sign {
  position: relative;
  align-self: center;
  width: 16px;
  height: 16px;
  flex: none;
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  background: var(--nd-cyan);
  transition: transform .22s ease, opacity .22s ease;
}

.page-faq .faq-q__sign::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  transform: translateY(-.5px);
}

.page-faq .faq-q__sign::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  transform: translateX(-.5px);
}

.page-faq .faq-q[open] .faq-q__sign::after {
  transform: translateX(-.5px) scaleY(0);
  opacity: 0;
}

.page-faq .faq-q__a {
  padding: 0 0 1.1rem 2.4rem;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--nd-mist);
  max-width: 64ch;
}

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

.page-faq .faq-q__a a {
  color: var(--nd-cyan);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-q__a a:hover {
  color: var(--nd-snow);
}

/* ---------- 支持渠道 ---------- */
.page-faq .faq-support__inner {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3rem);
  align-items: start;
}

.page-faq .faq-support__lede {
  margin: 1rem 0 0;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--nd-mist);
  max-width: 52ch;
}

.page-faq .faq-support__data {
  margin: 1.5rem 0 0;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-support__data > div {
  display: grid;
  grid-template-columns: 5.2rem minmax(0, 1fr);
  gap: .8rem;
  padding: .78rem 0;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-support__data dt {
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--nd-mist);
}

.page-faq .faq-support__data dd {
  margin: 0;
  font-family: var(--nd-mono);
  font-size: .84rem;
  line-height: 1.65;
  color: var(--nd-snow);
  overflow-wrap: anywhere;
}

.page-faq .faq-support__link {
  display: inline-block;
  margin-top: 1.4rem;
  padding-bottom: .2rem;
  font-size: .88rem;
  color: var(--nd-cyan);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-support__link:hover {
  color: var(--nd-gold);
}

.page-faq .faq-status {
  position: relative;
  overflow: hidden;
  padding: 1.4rem 1.15rem 1.5rem;
  border: 1px solid var(--faq-rule);
  background: var(--nd-ink-deep);
}

.page-faq .faq-status__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  opacity: .26;
  pointer-events: none;
}

.page-faq .faq-status__title,
.page-faq .faq-status__hint,
.page-faq .faq-status__list {
  position: relative;
  z-index: 1;
}

.page-faq .faq-status__title {
  margin: 0;
  font-family: var(--nd-display);
  font-weight: 400;
  font-size: 1.05rem;
  letter-spacing: .04em;
  color: var(--nd-ice);
}

.page-faq .faq-status__hint {
  margin: .45rem 0 0;
  font-size: .78rem;
  line-height: 1.7;
  color: var(--nd-mist);
}

.page-faq .faq-status__list {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-status__item {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  gap: .85rem;
  align-items: start;
  padding: .85rem 0;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-status__dot {
  width: 8px;
  height: 8px;
  margin-top: .5rem;
  background: var(--nd-cyan);
  box-shadow: 0 0 0 3px var(--faq-glow);
}

.page-faq .faq-status__name {
  margin: 0;
  font-size: .9rem;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--nd-snow);
}

.page-faq .faq-status__time {
  margin: .25rem 0 0;
  font-family: var(--nd-mono);
  font-size: .76rem;
  line-height: 1.65;
  color: var(--nd-gold);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__index {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-groups__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 2rem;
  }

  .page-faq .faq-status {
    padding: 1.7rem 1.6rem 1.8rem;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-tabs {
    grid-template-columns: minmax(0, 232px) minmax(0, 1fr);
    gap: 2.4rem;
    align-items: start;
  }

  .page-faq .faq-tablist {
    flex-direction: column;
    overflow: visible;
    position: sticky;
    top: 92px;
  }

  .page-faq .nd-tab.faq-tab {
    white-space: normal;
    padding: .85rem .95rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-path__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

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

  .page-faq .faq-q__a {
    padding-left: 2.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-group,
  .page-faq .nd-tab.faq-tab,
  .page-faq .faq-q__q,
  .page-faq .faq-q__sign::before,
  .page-faq .faq-q__sign::after {
    transition: none;
  }
}
<<<END>>>