.page-faq {
  --faq-num: var(--font-mono);
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

.page-faq .container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.page-faq .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--green);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(18px, 3vw, 32px) clamp(36px, 6vw, 76px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(90deg, rgba(126, 147, 168, 0.11) 1px, transparent 1px),
    linear-gradient(0deg, rgba(126, 147, 168, 0.06) 1px, transparent 1px);
  background-size: 88px 88px, 88px 88px;
  -webkit-mask-image: radial-gradient(125% 95% at 18% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(125% 95% at 18% 0%, #000 0%, transparent 72%);
  pointer-events: none;
}

.page-faq .breadcrumbs {
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

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

.page-faq .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
}

.page-faq h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 7vw, 64px);
  line-height: 1.03;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
  color: var(--steel);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero__meta {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--steel);
  border-left: 2px solid var(--orange);
  padding-left: 12px;
}

.page-faq .faq-figure {
  position: relative;
  margin: 0;
  min-width: 0;
}

.page-faq .faq-figure .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.06) brightness(0.9);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-faq .faq-figure .media-frame__caption {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-faq .faq-figure--inset .media-frame__img {
  aspect-ratio: 5 / 4;
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  padding-block: clamp(40px, 6vw, 80px);
}

.page-faq .section-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(14px, 3vw, 28px);
}

.page-faq .section-index {
  flex: none;
  font-family: var(--font-display);
  font-size: clamp(34px, 6vw, 60px);
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 1px var(--line);
  letter-spacing: 0.02em;
}

.page-faq .section-head__body {
  min-width: 0;
}

.page-faq .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.6vw, 36px);
  line-height: 1.15;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-faq .step-track {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .step {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: transform 0.26s var(--ease), border-color 0.26s var(--ease);
}

.page-faq .step:hover {
  transform: translateY(-2px);
  border-color: rgba(53, 240, 138, 0.6);
}

.page-faq .step__num {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--green);
}

.page-faq .step__title {
  margin: 0 0 10px;
  font-family: var(--font-body);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .step__text {
  margin: 0 0 16px;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--steel);
}

.page-faq .step__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 138, 0.45);
  padding-bottom: 2px;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

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

/* ---------- 问答主体 ---------- */
.page-faq .faq-answers {
  padding-block: clamp(40px, 6vw, 80px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-faq .faq-rail {
  border-left: 2px solid var(--line);
  padding-left: 16px;
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-rail__list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 4px 10px 12px;
  font-size: 0.95rem;
  color: var(--steel);
  text-decoration: none;
  border-left: 2px solid transparent;
  margin-left: -18px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  color: var(--paper);
  border-left-color: var(--green);
  background: rgba(53, 240, 138, 0.06);
}

.page-faq .faq-rail__count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-faq .faq-rail__note {
  margin: 18px 0 16px;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--steel);
}

.page-faq .faq-rail__back {
  display: inline-block;
}

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

.page-faq .faq-group {
  margin-bottom: clamp(30px, 4vw, 46px);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

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

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.4vw, 22px);
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-faq .faq-group__title::before {
  content: "";
  flex: none;
  width: 26px;
  height: 2px;
  background: var(--orange);
}

.page-faq .faq-item {
  margin-bottom: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(126, 147, 168, 0.55);
}

.page-faq .faq-item[open] {
  border-color: rgba(53, 240, 138, 0.55);
  background: #0c1219;
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: -2px;
}

.page-faq .faq-item__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-faq .faq-item[open] .faq-item__num {
  color: var(--green);
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .faq-item__icon {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--green);
  transform: translate(-50%, -50%);
  transition: opacity 0.2s var(--ease);
}

.page-faq .faq-item__icon::before {
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__icon::after {
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-item__icon::after {
  opacity: 0;
}

.page-faq .faq-item__body {
  padding: 0 18px 20px;
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
  max-width: 62ch;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--steel);
}

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

.page-faq .faq-item__body strong {
  color: var(--paper);
}

.page-faq .faq-visual {
  margin: 18px 0 6px;
  padding: 14px;
  border: 1px dashed var(--line);
  background: rgba(16, 21, 28, 0.65);
}

.page-faq .faq-visual__cap {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.9;
  color: var(--steel);
}

/* ---------- 客服 ---------- */
.page-faq .faq-support {
  padding-block: clamp(44px, 7vw, 88px);
  border-top: 1px solid var(--line);
  background:
    radial-gradient(120% 130% at 100% 0%, rgba(53, 240, 138, 0.08) 0%, transparent 58%),
    var(--ink);
}

.page-faq .faq-support__grid {
  display: grid;
  gap: 20px;
  margin-top: clamp(24px, 4vw, 38px);
}

.page-faq .faq-support__card {
  padding: 6px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-faq .faq-support__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-support__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-support__label {
  flex: none;
  width: 76px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-faq .faq-support__value {
  flex: 1 1 190px;
  min-width: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .copy-btn {
  flex: none;
  padding: 6px 11px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--green);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .copy-btn:hover,
.page-faq .copy-btn:focus-visible {
  border-color: var(--green);
  background: rgba(53, 240, 138, 0.1);
}

.page-faq .copy-btn[data-copied]::after {
  content: " 已复制";
  color: var(--paper);
}

.page-faq .faq-support__aside {
  padding: 20px 18px;
  border-left: 2px solid var(--orange);
  background: rgba(16, 21, 28, 0.5);
}

.page-faq .faq-support__aside p {
  margin: 0 0 14px;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--steel);
}

.page-faq .faq-support__aside .btn {
  margin-top: 4px;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-faq .step-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-faq .faq-layout {
    grid-template-columns: 268px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-faq .faq-item__summary {
    padding: 18px 22px;
  }

  .page-faq .faq-item__body {
    padding: 0 22px 22px 47px;
  }

  .page-faq .faq-visual {
    padding: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step,
  .page-faq .faq-item,
  .page-faq .faq-rail__list a,
  .page-faq .step__link,
  .page-faq .copy-btn,
  .page-faq .faq-item__icon::after {
    transition: none;
  }

  .page-faq .step:hover {
    transform: none;
  }
}
<<<END>>>