.page-faq {
  --faq-pad: clamp(16px, 4vw, 40px);
  --faq-line-y: clamp(28px, 5vw, 56px);
  background: linear-gradient(180deg, var(--bf-ink) 0%, var(--bf-ink) 58%, #04170F 100%);
  color: var(--bf-mist);
  padding-bottom: clamp(40px, 7vw, 84px);
  overflow-x: clip;
}

.page-faq :focus-visible {
  outline: 2px solid var(--bf-mint);
  outline-offset: 3px;
}

.page-faq .bf-breadcrumb {
  padding-top: 16px;
  font-size: 12px;
}

.page-faq .bf-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--bf-mono);
  letter-spacing: 0.04em;
  color: var(--bf-slate);
}

.page-faq .bf-breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(126, 154, 144, 0.6);
}

.page-faq .bf-breadcrumb a {
  color: var(--bf-mint-soft);
  text-decoration: none;
}

.page-faq .bf-breadcrumb a:hover {
  color: var(--bf-mint);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(18px, 4vw, 34px) 0 clamp(26px, 5vw, 52px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -16%;
  width: min(88vw, 660px);
  height: min(88vw, 660px);
  background: radial-gradient(circle at 40% 40%, rgba(59, 242, 176, 0.2), rgba(59, 242, 176, 0) 64%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 62%;
  height: 58%;
  background: linear-gradient(140deg, rgba(255, 194, 75, 0.12), rgba(59, 242, 176, 0.06));
  clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 100%);
  border-left: 1px solid rgba(59, 242, 176, 0.18);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 4vw, 42px);
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-family: var(--bf-cond);
  font-weight: 800;
  font-size: clamp(28px, 7vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.page-faq .faq-hero h1 span {
  display: block;
  margin-top: 12px;
  font-family: var(--bf-mono);
  font-size: clamp(11px, 2.6vw, 13px);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bf-mint);
}

.page-faq .faq-hero__lede {
  margin-top: 16px;
  max-width: 34em;
  color: rgba(234, 244, 239, 0.82);
  font-size: clamp(14px, 3.4vw, 16px);
  line-height: 1.78;
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 22px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--bf-line);
  display: grid;
  gap: 10px;
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 13px;
  color: rgba(234, 244, 239, 0.78);
}

.page-faq .faq-hero__num {
  font-family: var(--bf-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--bf-amber);
  min-width: 34px;
}

.page-faq .faq-hero__media {
  margin: 0;
  border-radius: var(--bf-radius-lg);
  border: 1px solid var(--bf-line-strong);
  overflow: hidden;
  box-shadow: var(--bf-shadow-soft);
  aspect-ratio: 4 / 3;
  background: var(--bf-ink-2);
}

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

/* ---------- 分段按钮与问答 ---------- */
.page-faq .faq-segments {
  padding: clamp(22px, 4vw, 44px) 0 0;
}

.page-faq .faq-segments__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(16px, 3vw, 26px);
}

.page-faq .faq-segments__head h2 {
  margin: 6px 0 0;
  font-family: var(--bf-cond);
  font-size: clamp(22px, 5vw, 34px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
}

.page-faq .faq-segments__hint {
  margin: 0;
  max-width: 30em;
  font-size: 13px;
  line-height: 1.7;
  color: var(--bf-slate);
}

.page-faq .faq-tabs__list {
  display: grid;
  gap: 10px;
  margin: 0 0 clamp(18px, 3vw, 28px);
  padding: 0;
  grid-template-columns: 1fr;
}

.page-faq .faq-seg {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num label"
    "num meta";
  align-items: center;
  gap: 2px 14px;
  width: 100%;
  padding: 16px 18px;
  text-align: left;
  font-family: inherit;
  color: var(--bf-mist);
  background: rgba(12, 46, 38, 0.66);
  border: 1px solid var(--bf-line);
  border-radius: var(--bf-radius-lg);
  cursor: pointer;
  transition: transform 0.2s var(--bf-ease), border-color 0.2s var(--bf-ease), background 0.2s var(--bf-ease);
}

.page-faq .faq-seg:hover {
  transform: translateY(-2px);
  border-color: var(--bf-line-strong);
}

.page-faq .faq-seg[aria-selected="true"] {
  border-color: var(--bf-mint);
  background: linear-gradient(150deg, rgba(59, 242, 176, 0.18), rgba(12, 46, 38, 0.92) 64%);
  box-shadow: inset 0 0 0 1px rgba(59, 242, 176, 0.28), var(--bf-shadow-soft);
}

.page-faq .faq-seg__num {
  grid-area: num;
  font-family: var(--bf-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--bf-amber);
}

.page-faq .faq-seg[aria-selected="true"] .faq-seg__num {
  color: var(--bf-mint);
}

.page-faq .faq-seg__label {
  grid-area: label;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-seg__meta {
  grid-area: meta;
  font-family: var(--bf-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--bf-slate);
}

.page-faq .faq-panel {
  padding-top: 4px;
}

.page-faq .faq-panel[hidden] {
  display: none;
}

.page-faq .faq-panel__lead {
  margin: 0 0 8px;
  padding: 14px 16px;
  border-left: 2px solid var(--bf-mint);
  border-radius: 0 var(--bf-radius) var(--bf-radius) 0;
  background: rgba(59, 242, 176, 0.07);
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(234, 244, 239, 0.86);
}

/* 问答条目 */
.page-faq .faq-q {
  border-top: 1px solid var(--bf-line);
}

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

.page-faq .faq-q__head {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 20px;
  gap: 12px;
  align-items: start;
  padding: 18px 2px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q__num {
  font-family: var(--bf-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--bf-mint-soft);
  padding-top: 5px;
}

.page-faq .faq-q__title {
  font-size: clamp(15px, 3.8vw, 17px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--bf-mist);
  transition: color 0.2s var(--bf-ease);
}

.page-faq .faq-q[open] .faq-q__title,
.page-faq .faq-q__head:hover .faq-q__title {
  color: var(--bf-mint);
}

.page-faq .faq-q__mark {
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 4px;
  border: 1px solid var(--bf-line-strong);
  border-radius: var(--bf-radius-pill);
  flex: none;
}

.page-faq .faq-q__mark::before {
  content: "+";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--bf-mono);
  font-size: 13px;
  line-height: 1;
  color: var(--bf-mint);
}

.page-faq .faq-q[open] .faq-q__mark::before {
  content: "–";
  color: var(--bf-amber);
}

.page-faq .faq-q[open] .faq-q__mark {
  border-color: var(--bf-amber);
}

.page-faq .faq-q__body {
  padding: 0 2px 22px 60px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(234, 244, 239, 0.82);
}

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

.page-faq .faq-q__body p + p {
  margin-top: 10px;
}

.page-faq .faq-q__body a {
  color: var(--bf-mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 12px 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 13.5px;
  line-height: 1.7;
}

.page-faq .faq-steps__n {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: var(--bf-radius-pill);
  border: 1px solid var(--bf-line-strong);
  background: rgba(59, 242, 176, 0.13);
  font-family: var(--bf-mono);
  font-size: 11px;
  color: var(--bf-mint);
}

/* 插叙块：移动端示意 + 自查路径 */
.page-faq .faq-interlude {
  display: grid;
  gap: clamp(16px, 3vw, 26px);
  margin: clamp(22px, 4vw, 32px) 0;
  padding: clamp(14px, 3vw, 24px);
  border: 1px solid var(--bf-line);
  border-radius: var(--bf-radius-lg);
  background: var(--bf-surface);
}

.page-faq .faq-interlude__fig {
  margin: 0;
  border-radius: var(--bf-radius);
  overflow: hidden;
  border: 1px solid var(--bf-line);
  background: var(--bf-ink-2);
}

.page-faq .faq-interlude__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 340px;
  object-fit: cover;
}

.page-faq .faq-interlude__fig figcaption {
  padding: 8px 12px;
  font-family: var(--bf-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--bf-slate);
  border-top: 1px solid var(--bf-line);
}

.page-faq .faq-interlude__body h3 {
  margin: 0 0 10px;
  font-family: var(--bf-cond);
  font-size: clamp(18px, 4.2vw, 24px);
  font-weight: 800;
  line-height: 1.24;
  color: var(--bf-mist);
}

.page-faq .faq-interlude__body p {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(234, 244, 239, 0.78);
}

.page-faq .faq-diag__svg {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
  border-radius: var(--bf-radius);
  background: rgba(6, 32, 26, 0.72);
  border: 1px solid var(--bf-line);
}

/* ---------- 收尾联系卡 ---------- */
.page-faq .faq-help {
  padding: clamp(30px, 6vw, 62px) 0 0;
}

.page-faq .faq-help__card {
  max-width: 780px;
  margin: 0 auto;
  padding: clamp(20px, 4vw, 36px);
  border: 1px solid var(--bf-line-strong);
  border-radius: var(--bf-radius-lg);
  background: linear-gradient(152deg, rgba(12, 46, 38, 0.96), rgba(6, 32, 26, 0.94));
  box-shadow: var(--bf-shadow-soft);
}

.page-faq .faq-help__card h2 {
  margin: 8px 0 0;
  font-family: var(--bf-cond);
  font-size: clamp(21px, 5vw, 32px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-faq .faq-help__text {
  margin: 14px 0 18px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(234, 244, 239, 0.82);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__list li {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(155, 247, 214, 0.16);
  font-size: 13.5px;
}

.page-faq .faq-help__k {
  font-family: var(--bf-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--bf-slate);
}

.page-faq .faq-help__list a {
  color: var(--bf-mint);
  text-decoration: none;
  word-break: break-all;
}

.page-faq .faq-help__list a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-help__actions .bf-btn {
  flex: 1 1 160px;
  text-align: center;
}

.page-faq .faq-help__fine {
  margin: 18px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(155, 247, 214, 0.14);
  font-size: 12px;
  line-height: 1.7;
  color: var(--bf-slate);
}

.page-faq .faq-help__fine a {
  color: var(--bf-mint-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-tabs__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-hero__facts li {
    display: block;
  }

  .page-faq .faq-hero__num {
    display: block;
    font-size: 24px;
    margin-bottom: 4px;
  }
}

@media (min-width: 820px) {
  .page-faq .faq-interlude {
    grid-template-columns: minmax(0, 0.68fr) minmax(0, 1.32fr);
    align-items: center;
  }

  .page-faq .faq-segments__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
    align-items: end;
    gap: 24px;
  }

  .page-faq .faq-q__body {
    padding-left: 58px;
    padding-right: 40px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.24fr) minmax(0, 0.76fr);
    align-items: end;
  }

  .page-faq .faq-hero__media {
    aspect-ratio: 3 / 4;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-tabs__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-q__head {
    grid-template-columns: 58px minmax(0, 1fr) 22px;
    gap: 18px;
    padding: 22px 4px;
  }

  .page-faq .faq-q__body {
    padding-left: 76px;
    padding-right: 88px;
    font-size: 14.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-seg,
  .page-faq .faq-q__title {
    transition: none;
  }

  .page-faq .faq-seg:hover {
    transform: none;
  }
}
<<<PAGE_CSS_DONE>>>