.page-faq {
  --faq-radius: 20px;
  --faq-gap: clamp(1.1rem, 2.6vw, 2.1rem);
  --faq-edge: 1px solid rgba(143, 166, 156, 0.18);
  --faq-panel: rgba(22, 51, 43, 0.42);
  --faq-soft: rgba(200, 255, 61, 0.08);
  color: var(--snow);
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  padding-top: clamp(0.9rem, 2vw, 1.4rem);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .breadcrumbs a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-faq .breadcrumbs [aria-current="page"] {
  color: var(--snow);
}

.page-faq .breadcrumbs__sep {
  margin-inline: 0.5rem;
  opacity: 0.5;
}

/* ---------- 首屏拼贴 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: var(--faq-gap);
  padding-block: clamp(1.4rem, 3.5vw, 2.4rem) clamp(2rem, 5vw, 3.4rem);
  background:
    radial-gradient(circle at 88% 6%, rgba(200, 255, 61, 0.12), transparent 52%),
    radial-gradient(circle at 4% 96%, rgba(255, 107, 44, 0.09), transparent 46%);
}

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

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lime);
  margin: 0 0 0.85rem;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 7.2vw, 4.4rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  text-wrap: balance;
}

.page-faq .lede {
  font-size: clamp(0.98rem, 1.6vw, 1.08rem);
  line-height: 1.75;
  color: rgba(244, 248, 242, 0.82);
  max-width: 46ch;
  margin: 0 0 clamp(1.2rem, 3vw, 1.8rem);
}

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

.page-faq .hero-questions a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.9rem;
  padding: 0.9rem 1.05rem;
  border: var(--faq-edge);
  border-radius: 16px;
  background: linear-gradient(120deg, rgba(22, 51, 43, 0.78), rgba(11, 31, 26, 0.6));
  color: var(--snow);
  text-decoration: none;
  transition: transform 170ms var(--ease), border-color 170ms var(--ease), background 170ms var(--ease);
}

.page-faq .hero-questions a:hover {
  transform: translateY(-3px);
  border-color: rgba(200, 255, 61, 0.55);
  background: linear-gradient(120deg, rgba(22, 51, 43, 0.95), rgba(11, 31, 26, 0.75));
}

.page-faq .hero-questions__num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--orange);
  letter-spacing: 0.02em;
}

.page-faq .hero-questions__text {
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.45;
}

.page-faq .hero-questions__arrow {
  color: var(--lime);
  font-size: 0.95rem;
}

.page-faq .faq-hero__media {
  min-width: 0;
  margin: 0;
  border-radius: var(--faq-radius);
  overflow: hidden;
  border: var(--faq-edge);
  background: var(--ink-900);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-faq .media-frame__caption {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--mist);
  padding: 0.7rem 0.95rem 0.85rem;
  line-height: 1.6;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.8rem);
  padding-top: clamp(0.6rem, 2vw, 1.2rem);
}

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

.page-faq .faq-index__title {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
  margin: 0 0 0.65rem;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0.4rem;
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__list li {
  flex: 0 0 auto;
}

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  white-space: nowrap;
  padding: 0.5rem 0.8rem;
  border: var(--faq-edge);
  border-radius: 999px;
  font-size: 0.82rem;
  color: rgba(244, 248, 242, 0.85);
  text-decoration: none;
  transition: color 150ms var(--ease), border-color 150ms var(--ease), background 150ms var(--ease);
}

.page-faq .faq-index__list a:hover {
  color: var(--lime);
  border-color: rgba(200, 255, 61, 0.5);
  background: var(--faq-soft);
}

.page-faq .faq-index__list a span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--orange);
}

/* ---------- 章节 ---------- */
.page-faq .faq-main {
  min-width: 0;
  display: grid;
  gap: clamp(1.8rem, 4.5vw, 3.2rem);
}

.page-faq .faq-section {
  min-width: 0;
  scroll-margin-top: calc(var(--topbar-h) + 1rem);
  border-top: var(--faq-edge);
  padding-top: clamp(1.3rem, 3vw, 2rem);
}

.page-faq .faq-section__head {
  margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
}

.page-faq .faq-section__num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin: 0 0 0.4rem;
}

.page-faq .faq-section h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 3.4vw, 2.15rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.55rem;
}

.page-faq .faq-section__intro {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--mist);
  margin: 0;
  max-width: 42ch;
}

/* ---------- 步骤条 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0 0 clamp(1.1rem, 2.6vw, 1.6rem);
  padding: 0;
  display: grid;
  gap: 0.75rem;
  counter-reset: step;
}

.page-faq .steps__item {
  position: relative;
  padding: 0.95rem 1.05rem 0.95rem 3.1rem;
  border: var(--faq-edge);
  border-radius: 16px;
  background: var(--faq-panel);
}

.page-faq .steps__num {
  position: absolute;
  left: 0.95rem;
  top: 0.95rem;
  width: 1.55rem;
  height: 1.55rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(200, 255, 61, 0.55);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--lime);
  background: rgba(7, 17, 14, 0.7);
}

.page-faq .steps__item h3 {
  font-size: 0.98rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
  line-height: 1.45;
}

.page-faq .steps__item p {
  font-size: 0.9rem;
  line-height: 1.72;
  color: rgba(244, 248, 242, 0.76);
  margin: 0;
}

.page-faq .steps__item p a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(77, 216, 255, 0.35);
}

.page-faq .steps__item p a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 0.55rem;
}

.page-faq .qa {
  border: var(--faq-edge);
  border-radius: 14px;
  background: var(--faq-panel);
  overflow: hidden;
  transition: border-color 170ms var(--ease), background 170ms var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(200, 255, 61, 0.34);
  background: rgba(22, 51, 43, 0.62);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.05rem;
  font-size: 0.96rem;
  font-weight: 600;
  line-height: 1.5;
  cursor: pointer;
  list-style: none;
  color: var(--snow);
}

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

.page-faq .qa__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1.2;
  color: var(--lime);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
}

.page-faq .qa__a {
  padding: 0 1.05rem 1rem;
}

.page-faq .qa__a p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: rgba(244, 248, 242, 0.78);
}

.page-faq .qa__a a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(77, 216, 255, 0.35);
}

.page-faq .qa__a a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 图文错位 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: clamp(1rem, 2.6vw, 1.6rem);
  margin-bottom: clamp(1rem, 2.6vw, 1.6rem);
}

.page-faq .faq-split__media {
  margin: 0;
  border-radius: var(--faq-radius);
  overflow: hidden;
  border: var(--faq-edge);
  background: var(--ink-800);
}

.page-faq .faq-split__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 10 / 7;
}

/* ---------- 平板示意 ---------- */
.page-faq .faq-device {
  display: grid;
  gap: clamp(1rem, 2.6vw, 1.6rem);
  align-items: center;
  padding: clamp(1rem, 2.6vw, 1.5rem);
  border-radius: var(--faq-radius);
  background:
    linear-gradient(135deg, rgba(22, 51, 43, 0.85), rgba(7, 17, 14, 0.9)),
    repeating-linear-gradient(0deg, rgba(143, 166, 156, 0.08) 0 1px, transparent 1px 24px);
  border: var(--faq-edge);
  margin-bottom: clamp(1rem, 2.6vw, 1.6rem);
}

.page-faq .faq-device__svg {
  display: block;
  width: 100%;
  max-width: 360px;
  height: auto;
  justify-self: center;
}

.page-faq .faq-device__text p {
  margin: 0 0 0.7rem;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(244, 248, 242, 0.8);
}

.page-faq .faq-device__text p:last-child {
  margin-bottom: 0;
  color: var(--mist);
  font-size: 0.86rem;
}

/* ---------- 准备清单 ---------- */
.page-faq .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-faq .prep-list__item {
  display: grid;
  gap: 0.3rem;
  padding: 0.9rem 1rem;
  border-left: 2px solid rgba(255, 200, 87, 0.55);
  background: rgba(22, 51, 43, 0.35);
  border-radius: 0 12px 12px 0;
}

.page-faq .prep-list__tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-faq .prep-list__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: rgba(244, 248, 242, 0.78);
}

/* ---------- 联系卡 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: clamp(1rem, 2.6vw, 1.6rem);
  padding: clamp(1.15rem, 3vw, 1.9rem);
  border-radius: var(--faq-radius);
  background: var(--paper);
  color: var(--ink-900);
}

.page-faq .faq-contact__lead {
  margin: 0 0 0.9rem;
  font-family: var(--font-serif);
  font-size: clamp(0.98rem, 1.8vw, 1.1rem);
  line-height: 1.7;
  color: var(--ink-900);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0 0 0.9rem;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .faq-contact__list li {
  display: grid;
  gap: 0.15rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid rgba(11, 31, 26, 0.14);
}

.page-faq .faq-contact__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(11, 31, 26, 0.6);
}

.page-faq .faq-contact__value {
  font-size: 0.92rem;
  line-height: 1.6;
  font-weight: 600;
  color: var(--ink-900);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.65;
  color: rgba(11, 31, 26, 0.66);
}

.page-faq .faq-contact__action {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.page-faq .faq-contact__action .btn--lime {
  color: var(--ink-950);
  font-weight: 700;
}

.page-faq .faq-contact__action .btn--ghost {
  color: var(--ink-900);
  border-color: rgba(11, 31, 26, 0.3);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero__media img {
    aspect-ratio: 16 / 10;
  }

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

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

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-faq .faq-device {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    align-items: center;
  }

  .page-faq .faq-contact__action {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
  }

  .page-faq .faq-hero__media {
    margin-top: 1.6rem;
  }

  .page-faq .faq-layout {
    grid-template-columns: 208px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--topbar-h) + 1.4rem);
    padding-right: 0.6rem;
    border-right: var(--faq-edge);
  }

  .page-faq .faq-index__list {
    display: grid;
    gap: 0.2rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list a {
    display: flex;
    width: 100%;
    padding: 0.5rem 0.35rem;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 8px 8px 0;
    background: transparent;
    font-size: 0.86rem;
    white-space: normal;
    line-height: 1.4;
  }

  .page-faq .faq-index__list a:hover {
    border-left-color: var(--lime);
    background: var(--faq-soft);
  }

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

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

  .page-faq .faq-section h2 {
    max-width: 24ch;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-layout {
    grid-template-columns: 224px minmax(0, 1fr);
  }

  .page-faq .faq-main {
    padding-left: clamp(0.5rem, 2vw, 1.4rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .hero-questions a,
  .page-faq .qa,
  .page-faq .faq-index__list a,
  .page-faq .breadcrumbs a {
    transition: none;
  }

  .page-faq .hero-questions a:hover {
    transform: none;
  }
}
<<<END>>>