.page-faq {
  --faq-line: rgba(168, 179, 170, 0.22);
  --faq-line-soft: rgba(168, 179, 170, 0.13);
  --faq-radius: 14px;
  position: relative;
  color: var(--fx-paper);
  background:
    radial-gradient(900px 520px at 88% -8%, rgba(255, 90, 31, 0.18), transparent 64%),
    radial-gradient(760px 500px at 2% 46%, rgba(57, 230, 210, 0.07), transparent 62%),
    var(--fx-night);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
  font-family: var(--font-sans);
}

.page-faq .breadcrumb {
  padding: clamp(1rem, 2.4vw, 1.5rem) 0 0;
  font-size: 0.8rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(1.2rem, 3vw, 2rem) 0 clamp(2rem, 5vw, 3.6rem);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4vw, 3rem);
}

.page-faq .faq-hero__copy h1 {
  margin: 0.5rem 0 1rem;
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 5.2vw, 3.35rem);
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--fx-paper);
}

.page-faq .lede {
  max-width: 52ch;
  margin: 0;
  font-size: clamp(0.95rem, 1.6vw, 1.02rem);
  line-height: 1.9;
  color: rgba(243, 239, 229, 0.82);
}

.page-faq .faq-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1.5rem 0 0;
}

.page-faq .faq-figures {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
  margin: 1.6rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-figures__cell dt {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fx-stone);
}

.page-faq .faq-figures__cell dd {
  margin: 0.3rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.6vw, 1.3rem);
  letter-spacing: -0.02em;
  color: var(--fx-cyan);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 90, 31, 0.55);
  border-radius: 4px 22px 4px 22px;
  background: var(--fx-night-deep);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-hero__media::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px dashed rgba(57, 230, 210, 0.32);
  border-radius: 2px 14px 2px 14px;
  pointer-events: none;
  z-index: 1;
}

.page-faq .faq-hero__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-faq .faq-hero__caption {
  padding: 0.65rem 0.9rem;
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--fx-stone);
  background: var(--fx-glass-solid);
  border-top: 1px solid var(--faq-line);
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-steps {
  padding: clamp(1.8rem, 4.5vw, 3rem) 0 clamp(1.4rem, 3.5vw, 2.2rem);
}

.page-faq .faq-steps__head {
  max-width: 62ch;
}

.page-faq .faq-steps__head h2 {
  margin: 0.35rem 0 0.5rem;
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  line-height: 1.3;
}

.page-faq .faq-steps__head p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--fx-stone);
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: clamp(1.3rem, 3vw, 2rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-faq .faq-steps__item {
  position: relative;
  padding: 1.35rem 1.2rem 1.45rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  background: linear-gradient(160deg, rgba(20, 61, 43, 0.78), rgba(14, 23, 18, 0.4));
}

.page-faq .faq-steps__item::before {
  content: "";
  position: absolute;
  left: 1.2rem;
  right: 1.2rem;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--fx-orange), rgba(255, 90, 31, 0));
}

.page-faq .faq-steps__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.85rem;
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--fx-orange);
}

.page-faq .faq-steps__item h3 {
  margin: 0.6rem 0 0.5rem;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--fx-paper);
}

.page-faq .faq-steps__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(243, 239, 229, 0.8);
}

.page-faq .faq-steps__state {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.85rem !important;
  font-size: 0.78rem !important;
  color: var(--fx-stone) !important;
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  margin-top: clamp(1rem, 3vw, 1.8rem);
  padding: clamp(1.6rem, 4vw, 2.8rem) 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
}

.page-faq .faq-rail {
  border-left: 2px solid rgba(255, 90, 31, 0.6);
  padding: 0.1rem 0 0.1rem 1rem;
}

.page-faq .faq-rail__title {
  margin: 0 0 0.8rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fx-sand);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0 0 0.9rem;
  padding: 0;
}

.page-faq .faq-rail__link {
  display: block;
  padding: 0.45rem 0;
  font-size: 0.9rem;
  color: var(--fx-stone);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line-soft);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--fx-cyan);
  border-bottom-color: rgba(57, 230, 210, 0.6);
  outline: none;
}

.page-faq .faq-rail__note {
  margin: 0;
  font-size: 0.76rem;
  line-height: 1.7;
  color: rgba(168, 179, 170, 0.9);
}

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

.page-faq .faq-group {
  padding-bottom: 1.4rem;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(0.9rem, 2vw, 1.3rem);
  padding-top: clamp(1.4rem, 3vw, 2rem);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-group h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 3vw, 1.72rem);
  line-height: 1.34;
  color: var(--fx-paper);
}

.page-faq .faq-group__intro {
  max-width: 58ch;
  margin: 0 0 1rem;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--fx-stone);
}

.page-faq .faq-group__media {
  margin: 0 0 1.2rem;
  overflow: hidden;
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  background: var(--fx-archive);
}

.page-faq .faq-group__media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-group__media figcaption {
  padding: 0.6rem 0.9rem;
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--fx-stone);
  background: rgba(10, 16, 12, 0.55);
  border-top: 1px solid var(--faq-line);
}

/* 可展开问答 */
.page-faq .qa {
  border: 1px solid var(--faq-line);
  border-radius: 10px;
  background: rgba(28, 42, 35, 0.42);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

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

.page-faq .qa[open] {
  border-color: rgba(255, 90, 31, 0.5);
  background: rgba(20, 61, 43, 0.62);
}

.page-faq .qa__q {
  position: relative;
  display: block;
  padding: 0.9rem 2.5rem 0.9rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.97rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--fx-paper);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__q::before {
  content: "+";
  position: absolute;
  right: 0.9rem;
  top: 0.78rem;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--fx-cyan);
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .qa[open] .qa__q::before {
  content: "+";
  transform: rotate(45deg);
  color: var(--fx-orange);
}

.page-faq .qa__q:hover {
  color: var(--fx-cyan);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--fx-cyan);
  outline-offset: -3px;
  border-radius: 10px;
}

.page-faq .qa__a {
  margin: 0 1rem 1.1rem;
  padding: 0.85rem 0 0 0.9rem;
  border-top: 1px solid var(--faq-line-soft);
  border-left: 2px solid var(--fx-orange);
}

.page-faq .qa__actions {
  display: grid;
  gap: 0.5rem;
  margin: 0 0 0.85rem;
  padding-left: 1.15rem;
  font-size: 0.9rem;
  line-height: 1.78;
  color: rgba(243, 239, 229, 0.86);
}

.page-faq .qa__actions li::marker {
  color: var(--fx-orange);
  font-family: var(--font-mono);
}

.page-faq .qa__a p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--fx-stone);
}

.page-faq .qa__a a {
  color: var(--fx-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__a a:hover,
.page-faq .qa__a a:focus-visible {
  color: var(--fx-sand);
}

/* ---------- 人工支持 ---------- */
.page-faq .faq-support {
  margin-top: clamp(1.4rem, 3.5vw, 2.4rem);
  padding: clamp(2rem, 5vw, 3.4rem) 0;
  border-top: 1px solid rgba(255, 90, 31, 0.42);
  border-bottom: 1px solid var(--faq-line);
  background:
    linear-gradient(135deg, rgba(255, 90, 31, 0.16), rgba(255, 90, 31, 0) 58%),
    var(--fx-night-deep);
}

.page-faq .faq-support__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
}

.page-faq .faq-support__copy h2 {
  margin: 0.35rem 0 0.7rem;
  font-family: var(--font-serif);
  font-size: clamp(1.45rem, 3.4vw, 2rem);
  line-height: 1.32;
}

.page-faq .faq-support__copy > p {
  max-width: 54ch;
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.85;
  color: rgba(243, 239, 229, 0.82);
}

.page-faq .faq-support__checklist {
  list-style: none;
  display: grid;
  gap: 0.55rem;
  margin: 1.1rem 0 0;
  padding: 0;
}

.page-faq .faq-support__checklist li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9rem;
  line-height: 1.72;
  color: rgba(243, 239, 229, 0.85);
}

.page-faq .faq-support__checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58rem;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--fx-orange);
  border-radius: 1px;
  transform: rotate(45deg);
}

.page-faq .faq-support__card {
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
  border: 1px solid rgba(232, 184, 106, 0.35);
  border-radius: 4px 18px 4px 18px;
  background: linear-gradient(180deg, rgba(20, 61, 43, 0.94), rgba(14, 23, 18, 0.92));
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-support__label {
  margin: 0 0 0.25rem;
  font-size: 0.71rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fx-sand);
}

.page-faq .faq-support__mail {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 2.4vw, 1.12rem);
  letter-spacing: -0.01em;
  color: var(--fx-cyan);
  word-break: break-all;
}

.page-faq .faq-support__value {
  margin: 0 0 1rem;
  font-size: 0.88rem;
  line-height: 1.72;
  color: rgba(243, 239, 229, 0.85);
}

.page-faq .faq-support__rule {
  margin: 0 0 1rem;
  border: 0;
  border-top: 1px solid rgba(232, 184, 106, 0.28);
}

.page-faq .faq-support__link {
  color: var(--fx-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-support__link:hover,
.page-faq .faq-support__link:focus-visible {
  color: var(--fx-sand);
}

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

@media (min-width: 820px) {
  .page-faq .faq-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-faq .faq-steps__item::after {
    content: "→";
    position: absolute;
    top: 50%;
    right: -1rem;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--fx-cyan);
  }

  .page-faq .faq-steps__item:last-child::after {
    content: none;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: clamp(1.8rem, 4vw, 3.2rem);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--bar-h) + 1.4rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__q::before,
  .page-faq .faq-rail__link {
    transition: none;
  }
}
<<<END>>>