.page-faq {
  --faq-cyan-soft: rgba(53, 224, 208, 0.38);
  --faq-hair: rgba(24, 58, 90, 0.85);
  --faq-hair-soft: rgba(24, 58, 90, 0.5);
  padding-bottom: clamp(2.5rem, 2rem + 4vw, 5rem);
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

.page-faq .faq-breadcrumb {
  padding-top: 1.5rem;
  padding-bottom: 0.5rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(1.25rem, 1rem + 1.5vw, 2rem) 0 clamp(2rem, 1.5rem + 3vw, 3.5rem);
  background-image:
    linear-gradient(rgba(24, 58, 90, 0.26) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 58, 90, 0.26) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center top;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(58% 78% at 84% 14%, rgba(53, 224, 208, 0.14), transparent 62%),
    radial-gradient(46% 66% at 6% 92%, rgba(255, 122, 61, 0.12), transparent 66%);
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: 2rem;
  align-items: end;
}

.page-faq .faq-hero h1 {
  margin: 0.75rem 0 1rem;
  max-width: 18ch;
  font-size: var(--fs-display);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ice);
}

.page-faq .faq-hero .lede {
  max-width: 48ch;
  margin: 0;
  color: rgba(234, 246, 255, 0.82);
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  margin-top: 1.75rem;
  padding-top: 1.4rem;
  border-top: 1px dashed var(--faq-hair);
}

.page-faq .faq-metric {
  display: grid;
  grid-template-columns: auto auto;
  align-items: baseline;
  gap: 0 0.3rem;
}

.page-faq .faq-metric__num {
  font-family: var(--font-mono);
  font-size: var(--fs-num);
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  letter-spacing: -0.02em;
}

.page-faq .faq-metric__unit {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--orange);
}

.page-faq .faq-metric__label {
  grid-column: 1 / -1;
  margin-top: 0.45rem;
  font-size: var(--fs-small);
  color: var(--mist);
}

.page-faq .faq-metric--cyan .faq-metric__num,
.page-faq .faq-metric--cyan .faq-metric__unit {
  color: var(--cyan);
}

.page-faq .faq-metric--cyan .faq-metric__num {
  font-size: clamp(1.35rem, 1rem + 1.6vw, 2rem);
}

.page-faq .faq-metric--gold .faq-metric__num,
.page-faq .faq-metric--gold .faq-metric__unit {
  color: var(--gold);
}

/* ---------- 技能树分支 ---------- */
.page-faq .faq-tree {
  padding: clamp(2rem, 1.5rem + 2.5vw, 3.5rem) 0 clamp(1.5rem, 1rem + 2vw, 2.5rem);
  border-top: 1px solid var(--faq-hair-soft);
}

.page-faq .faq-tree__head {
  max-width: 44rem;
}

.page-faq .faq-tree__head h2 {
  margin: 0 0 0.6rem;
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ice);
}

.page-faq .faq-tree__head p {
  max-width: 54ch;
  margin: 0 0 1.75rem;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-tree__list {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-tree__node > a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num desc";
  column-gap: 0.9rem;
  row-gap: 0.2rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(14, 34, 59, 0.85), rgba(7, 20, 38, 0.92));
  text-decoration: none;
  transition:
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-faq .faq-tree__node > a:hover,
.page-faq .faq-tree__node > a:focus-visible {
  border-color: var(--faq-cyan-soft);
  background: linear-gradient(135deg, rgba(24, 58, 90, 0.72), rgba(7, 20, 38, 0.95));
  transform: translateY(-2px);
}

.page-faq .faq-tree__num {
  grid-area: num;
  align-self: start;
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border: 1px solid var(--faq-hair);
  border-radius: 50%;
  background: var(--arena);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--cyan);
}

.page-faq .faq-tree__title {
  grid-area: title;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ice);
}

.page-faq .faq-tree__desc {
  grid-area: desc;
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 悬浮定位条 ---------- */
.page-faq .faq-dock {
  position: sticky;
  top: var(--topbar-h);
  z-index: 6;
  background: rgba(7, 20, 38, 0.94);
  border-block: 1px solid var(--faq-hair);
  backdrop-filter: blur(12px);
}

.page-faq .faq-dock__inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-block: 0.6rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-dock__inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-dock__label {
  flex: none;
  padding-right: 0.75rem;
  border-right: 1px solid var(--faq-hair);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-faq .faq-dock__list {
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-dock__list a {
  display: block;
  flex: none;
  padding: 0.38rem 0.8rem;
  border: 1px solid var(--faq-hair);
  border-radius: 999px;
  font-size: 0.8rem;
  white-space: nowrap;
  text-decoration: none;
  color: var(--mist);
  transition:
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-faq .faq-dock__list a:hover,
.page-faq .faq-dock__list a:focus-visible {
  color: var(--arena);
  border-color: var(--cyan);
  background: var(--cyan);
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-block {
  position: relative;
  padding: clamp(2.5rem, 2rem + 3vw, 4rem) 0;
  border-top: 1px solid var(--faq-hair-soft);
  scroll-margin-top: calc(var(--topbar-h) + 4rem);
}

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

.page-faq .faq-block__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 1.1rem + 1.8vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.05em;
  color: rgba(143, 166, 184, 0.45);
}

.page-faq .faq-block--fees .faq-block__num,
.page-faq .faq-block--points .faq-block__num {
  color: rgba(255, 122, 61, 0.6);
}

.page-faq .faq-block--versions .faq-block__num {
  color: rgba(53, 224, 208, 0.6);
}

.page-faq .faq-block--mobile .faq-block__num {
  color: rgba(91, 227, 138, 0.6);
}

.page-faq .faq-block--connect .faq-block__num {
  color: rgba(255, 194, 74, 0.62);
}

.page-faq .faq-block__aside .section-title {
  margin: 0.6rem 0 0.5rem;
  font-size: var(--fs-h3);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ice);
}

.page-faq .faq-block__note {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.65;
  color: var(--mist);
}

/* 费用档位条 */
.page-faq .faq-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.9rem;
  margin-bottom: 1.1rem;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(255, 122, 61, 0.42);
  border-radius: var(--radius-md);
  background: linear-gradient(90deg, rgba(255, 122, 61, 0.13), rgba(7, 20, 38, 0.42));
}

.page-faq .faq-strip__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-faq .faq-strip__item {
  font-size: var(--fs-small);
  color: var(--ice);
}

.page-faq .faq-strip__item b {
  margin-right: 0.3rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--mist);
}

.page-faq .faq-strip__link {
  margin-left: auto;
  font-size: var(--fs-small);
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

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

/* 折叠问答 */
.page-faq .faq-item {
  margin-bottom: 0.7rem;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(14, 34, 59, 0.9), rgba(7, 20, 38, 0.92));
  overflow: hidden;
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(53, 224, 208, 0.28);
}

.page-faq .faq-item[open] {
  border-color: var(--faq-cyan-soft);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1.05rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ice);
  transition: background var(--dur) var(--ease);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover {
  background: rgba(24, 58, 90, 0.32);
}

.page-faq .faq-item__q::after {
  content: "+";
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 400;
  line-height: 1.4;
  color: var(--cyan);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
}

.page-faq .faq-item__a {
  padding: 0.9rem 1.1rem 1.15rem;
  border-top: 1px dashed rgba(24, 58, 90, 0.7);
  font-size: 0.97rem;
  line-height: 1.78;
  color: rgba(234, 246, 255, 0.84);
}

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

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

.page-faq .num-chip {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--orange);
}

.page-faq .num-chip--cyan {
  color: var(--cyan);
}

.page-faq .num-chip--go {
  color: var(--go);
}

/* 版本检索配图 */
.page-faq .faq-figure {
  margin: 1.5rem 0 0;
}

.page-faq .faq-more {
  margin: 1.35rem 0 0;
  font-size: var(--fs-small);
}

.page-faq .faq-more a {
  color: var(--cyan);
  text-decoration: none;
  padding-bottom: 1px;
  border-bottom: 1px solid rgba(53, 224, 208, 0.4);
}

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

/* 联系准备 */
.page-faq .faq-prep {
  padding: 1.35rem 1.25rem 1.5rem;
  border-left: 3px solid var(--gold);
}

.page-faq .faq-prep h3 {
  margin: 0 0 1.1rem;
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--ice);
}

.page-faq .faq-prep__list {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: prep;
}

.page-faq .faq-prep__list li {
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: baseline;
  counter-increment: prep;
  font-size: var(--fs-small);
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .faq-prep__list li::before {
  content: counter(prep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--gold);
}

.page-faq .faq-prep__list strong {
  display: block;
  margin-bottom: 0.1rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ice);
}

.page-faq .faq-contact {
  display: grid;
  gap: 0.1rem;
  margin-top: 1.4rem;
  padding-top: 1.1rem;
  border-top: 1px dashed var(--faq-hair-soft);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.3rem 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(24, 58, 90, 0.42);
}

.page-faq .faq-contact__key {
  flex: none;
  min-width: 5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-contact__val {
  min-width: 0;
  font-weight: 600;
  color: var(--ice);
  word-break: break-word;
}

.page-faq .faq-tip {
  margin: 1.35rem 0 0;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--coral);
  border-radius: var(--radius-sm);
  background: rgba(255, 92, 122, 0.1);
  font-size: var(--fs-small);
  line-height: 1.72;
  color: rgba(234, 246, 255, 0.86);
}

.page-faq .faq-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 48rem) {
  .page-faq .faq-tree__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem 1.1rem;
  }

  .page-faq .faq-figure {
    max-width: 22rem;
  }

  .page-faq .faq-contact__row {
    gap: 0.3rem 1.5rem;
  }
}

@media (min-width: 60rem) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(16rem, 0.85fr);
    gap: 3.5rem;
  }

  .page-faq .faq-hero__figure {
    align-self: end;
  }
}

@media (min-width: 62rem) {
  .page-faq .faq-block__grid {
    grid-template-columns: 16.5rem minmax(0, 1fr);
    gap: 3.5rem;
    align-items: start;
  }

  .page-faq .faq-block__aside {
    position: sticky;
    top: calc(var(--topbar-h) + 4.5rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tree__node > a,
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-dock__list a {
    transition: none;
  }

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