.page-faq {
  --faq-gap: clamp(16px, 2.4vw, 30px);
  padding-top: clamp(16px, 3vw, 34px);
  padding-bottom: clamp(40px, 6vw, 84px);
}

.page-faq .faq-hero {
  padding-bottom: clamp(20px, 3vw, 34px);
  border-bottom: 1px solid var(--eb-line);
}

.page-faq .faq-hero h1 {
  margin: 10px 0 14px;
  max-width: 22ch;
  font-size: clamp(28px, 4.6vw, 50px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--eb-paper);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 64ch;
  color: rgba(243, 239, 228, 0.8);
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.8;
}

.page-faq .faq-hero__meta {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.page-faq .faq-layout {
  margin-top: clamp(22px, 3.4vw, 40px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

/* 左侧分类轨道 */
.page-faq .faq-rail {
  align-self: start;
  min-width: 0;
}

.page-faq .faq-rail__caption {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--eb-rock);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

.page-faq .faq-rail__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  border-left: 2px solid transparent;
  border-radius: var(--radius);
  background: var(--eb-deck);
  color: var(--eb-rock);
  font-size: 13.5px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  color: var(--eb-paper);
  border-left-color: var(--eb-neon);
  background: rgba(56, 242, 207, 0.07);
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--eb-neon);
}

.page-faq .faq-rail__hint {
  margin: 0;
  color: var(--eb-rock);
  font-size: 12.5px;
  line-height: 1.7;
}

.page-faq .faq-rail__hint a {
  color: var(--eb-neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 207, 0.4);
}

.page-faq .faq-rail__hint a:hover {
  border-bottom-color: var(--eb-neon);
}

/* 内容区 */
.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-block {
  padding-top: clamp(22px, 3vw, 34px);
  padding-bottom: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--eb-line);
  scroll-margin-top: calc(var(--head-h) + 16px);
}

.page-faq .faq-block:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-block h2 {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 8px;
  font-size: clamp(20px, 2.8vw, 27px);
  letter-spacing: -0.01em;
  color: var(--eb-paper);
}

.page-faq .faq-block__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(12px, 1.3vw, 14px);
  color: var(--eb-neon);
  letter-spacing: 0.08em;
}

.page-faq .faq-block__desc {
  margin: 0 0 18px;
  max-width: 60ch;
  color: var(--eb-rock);
  font-size: 13.5px;
  line-height: 1.75;
}

/* 热门问题 */
.page-faq .faq-hot__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}

.page-faq .faq-hot__list li {
  border-bottom: 1px dashed rgba(46, 92, 78, 0.55);
}

.page-faq .faq-hot__list li:first-child {
  border-top: 1px dashed rgba(46, 92, 78, 0.55);
}

.page-faq .faq-hot__list a {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 13px 2px;
  color: var(--eb-paper);
  font-size: 14.5px;
  line-height: 1.6;
  text-decoration: none;
  transition: color 0.18s ease;
}

.page-faq .faq-hot__list a:hover,
.page-faq .faq-hot__list a:focus-visible {
  color: var(--eb-neon);
}

.page-faq .faq-hot__num {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 24px);
  line-height: 1;
  color: rgba(56, 242, 207, 0.55);
  transition: color 0.18s ease;
}

.page-faq .faq-hot__list a:hover .faq-hot__num {
  color: var(--eb-neon);
}

/* 图片 */
.page-faq .faq-media {
  margin: 0 0 20px;
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--eb-line);
  border-radius: var(--radius);
}

.page-faq .faq-media__cap {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--eb-rock);
  line-height: 1.7;
}

/* 折叠问答 */
.page-faq .faq-q {
  margin-bottom: 10px;
  background: var(--eb-deck);
  border: 1px solid var(--eb-line);
  border-left: 2px solid transparent;
  border-radius: var(--radius);
  transition: border-left-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-q:hover {
  border-left-color: var(--eb-glass);
}

.page-faq .faq-q[open] {
  border-left-color: var(--eb-neon);
  background: var(--eb-stand);
}

.page-faq .faq-q > summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--eb-paper);
  font-size: 15px;
  line-height: 1.55;
}

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

.page-faq .faq-q > summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--eb-neon);
}

.page-faq .faq-q[open] > summary::after {
  content: "−";
}

.page-faq .faq-q__a {
  padding: 0 16px 16px;
  color: rgba(243, 239, 228, 0.78);
  font-size: 14px;
  line-height: 1.82;
}

.page-faq .faq-q__a a {
  color: var(--eb-neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 207, 0.42);
}

.page-faq .faq-q__a a:hover {
  border-bottom-color: var(--eb-neon);
}

/* 四步通道 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  padding: 0 0 22px 52px;
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 42px;
  bottom: 2px;
  width: 1px;
  background: linear-gradient(to bottom, rgba(56, 242, 207, 0.5), rgba(56, 242, 207, 0.04));
}

.page-faq .faq-step:last-child::before {
  display: none;
}

.page-faq .faq-step__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--eb-neon);
  color: var(--eb-deep);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.page-faq .faq-step h3 {
  margin: 6px 0 4px;
  font-size: 15.5px;
  color: var(--eb-paper);
}

.page-faq .faq-step p {
  margin: 0;
  max-width: 58ch;
  color: rgba(243, 239, 228, 0.76);
  font-size: 13.5px;
  line-height: 1.78;
}

.page-faq .faq-copybar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  padding: 12px 14px;
  background: var(--eb-veil);
  border: 1px solid var(--eb-line-strong);
  border-radius: var(--radius);
}

.page-faq .faq-copybar__text {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--eb-mint);
  word-break: break-all;
}

.page-faq .faq-copybar .stand-copy {
  flex: none;
}

/* 联系支持 */
.page-faq .faq-support {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-support__card {
  padding: 16px 18px;
}

.page-faq .faq-support__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--eb-rock);
}

.page-faq .faq-support__value {
  margin: 0 0 10px;
  color: var(--eb-paper);
  font-size: 15px;
  line-height: 1.65;
  word-break: break-word;
}

.page-faq .faq-support__value a {
  color: var(--eb-neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 207, 0.42);
}

.page-faq .faq-support__value a:hover {
  border-bottom-color: var(--eb-neon);
}

.page-faq .faq-support__note {
  margin: 0 0 12px;
  color: var(--eb-rock);
  font-size: 13px;
  line-height: 1.75;
}

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

.page-faq .faq-outro {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 22px 0 0;
}

@media (min-width: 720px) {
  .page-faq .faq-support {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-support__card--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(24px, 3vw, 48px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--head-h) + 20px);
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    border-top: 1px solid var(--eb-line);
  }

  .page-faq .faq-rail__list a {
    background: transparent;
    border-radius: 0;
    white-space: normal;
    padding: 11px 12px;
  }

  .page-faq .faq-rail__list li + li {
    border-top: 1px solid rgba(46, 92, 78, 0.35);
  }

  .page-faq .faq-hot__list a {
    grid-template-columns: 52px minmax(0, 1fr);
    padding: 15px 2px;
  }
}

@media (min-width: 1240px) {
  .page-faq .faq-layout {
    grid-template-columns: 248px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-hot__num,
  .page-faq .faq-rail__list a {
    transition: none;
  }
}
<<<END>>>