.page-faq {
  --faq-rail-w: 258px;
  position: relative;
  background:
    radial-gradient(880px 520px at 84% -8%, rgba(34, 231, 192, .15), transparent 60%),
    radial-gradient(720px 460px at 2% 18%, rgba(255, 91, 46, .09), transparent 62%),
    var(--ag-ink);
  color: var(--ag-text);
  font-family: var(--ag-font-body);
  padding-bottom: 96px;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(96px, 11vw, 128px) 0 0;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: clamp(56px, 8vw, 92px);
  left: -6%;
  right: -6%;
  height: clamp(220px, 30vw, 340px);
  background: linear-gradient(112deg, rgba(34, 231, 192, .16), rgba(255, 91, 46, .09) 58%, rgba(7, 14, 28, 0) 84%);
  clip-path: polygon(0 0, 100% 0, 100% 58%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero .ag-container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 30px;
  margin-top: 26px;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--ag-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--ag-cyan);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--ag-font-display);
  font-weight: 900;
  font-size: clamp(30px, 7.2vw, 52px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--ag-white);
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ag-text);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__media {
  margin: 0;
}

.page-faq .faq-hero__media .ag-media__frame {
  aspect-ratio: 3 / 2;
  border: 1px solid var(--ag-edge);
  border-radius: var(--ag-radius-lg);
  overflow: hidden;
  background: var(--ag-panel-2);
  box-shadow: var(--ag-shadow-soft);
}

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

.page-faq .ag-media__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ag-muted);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin: 44px 0 0;
  padding: 1px;
  border: 1px solid var(--ag-edge-soft);
  border-radius: var(--ag-radius);
  overflow: hidden;
  background: var(--ag-edge-soft);
}

.page-faq .faq-stats__cell {
  background: rgba(11, 23, 48, .74);
  padding: 16px 18px;
}

.page-faq .faq-stats__key {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ag-muted);
}

.page-faq .faq-stats__val {
  margin: 6px 0 0;
  font-family: var(--ag-font-mono);
  font-size: 19px;
  font-weight: 700;
  color: var(--ag-cyan);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  margin-top: clamp(48px, 7vw, 76px);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-rail {
  border: 1px solid var(--ag-edge-soft);
  border-radius: var(--ag-radius-lg);
  background: linear-gradient(180deg, rgba(14, 27, 51, .78), rgba(7, 14, 28, .62));
  padding: 16px;
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--ag-font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--ag-muted);
}

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

.page-faq .faq-rail__item {
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--ag-edge-soft);
  border-radius: var(--ag-radius-pill);
  color: var(--ag-text);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .24s ease, transform .24s ease, background-color .24s ease;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-color: var(--ag-edge);
  background: rgba(34, 231, 192, .08);
  transform: translateY(-2px);
}

.page-faq .faq-rail__num {
  font-family: var(--ag-font-mono);
  font-size: 12px;
  color: var(--ag-orange);
}

.page-faq .faq-rail__label {
  font-size: 15px;
}

.page-faq .faq-rail__code {
  font-family: var(--ag-font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--ag-muted);
}

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

/* ---------- 分块标题 ---------- */
.page-faq .faq-block + .faq-block {
  margin-top: clamp(44px, 6vw, 68px);
}

.page-faq .faq-block__head {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--ag-edge-soft);
}

.page-faq .faq-block__index {
  flex: 0 0 auto;
  font-family: var(--ag-font-mono);
  font-size: clamp(26px, 5vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--ag-cyan-deep);
  transition: color .28s ease;
}

.page-faq .faq-block[data-active] .faq-block__index {
  color: var(--ag-orange);
}

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

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--ag-font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 30px);
  letter-spacing: -.01em;
  color: var(--ag-white);
}

.page-faq .faq-block__desc {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ag-muted);
}

.page-faq .faq-block__desc--foot {
  margin-top: 22px;
}

.page-faq .faq-block__hint {
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ag-text);
}

/* ---------- 四步排查 ---------- */
.page-faq .faq-steps {
  margin: 20px 0 30px;
}

.page-faq .faq-steps__path {
  display: block;
  width: 100%;
  max-width: 620px;
  height: auto;
  margin: 0 0 18px;
}

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

.page-faq .faq-step {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border: 1px solid var(--ag-edge-soft);
  border-radius: var(--ag-radius);
  background: rgba(11, 23, 48, .55);
  cursor: pointer;
  transition: border-color .24s ease, transform .24s ease, background-color .24s ease;
}

.page-faq .faq-step:hover {
  border-color: var(--ag-edge);
  transform: translateY(-2px);
}

.page-faq .faq-step:has(.faq-step__check:checked) {
  border-color: var(--ag-cyan);
  background: rgba(34, 231, 192, .07);
}

.page-faq .faq-step__check {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  border: 1px solid var(--ag-edge);
  border-radius: 5px;
  background: rgba(7, 14, 28, .85);
  position: relative;
  cursor: pointer;
}

.page-faq .faq-step__check:checked {
  background: var(--ag-cyan);
  border-color: var(--ag-cyan);
}

.page-faq .faq-step__check:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 11px;
  border: 2px solid var(--ag-ink);
  border-top: 0;
  border-left: 0;
  transform: rotate(42deg);
}

.page-faq .faq-step__check:focus-visible {
  outline: 2px solid var(--ag-cyan);
  outline-offset: 2px;
}

.page-faq .faq-step__body {
  display: block;
  min-width: 0;
}

.page-faq .faq-step__marker {
  display: block;
  font-family: var(--ag-font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--ag-cyan);
  margin-bottom: 4px;
}

.page-faq .faq-step__title {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--ag-white);
}

.page-faq .faq-step__desc {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ag-muted);
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .faq-item {
  border: 1px solid var(--ag-edge-soft);
  border-radius: var(--ag-radius);
  background: linear-gradient(180deg, rgba(14, 27, 51, .7), rgba(7, 14, 28, .5));
  transition: border-color .24s ease, box-shadow .24s ease;
}

.page-faq .faq-item:hover {
  border-color: var(--ag-edge);
}

.page-faq .faq-item[open] {
  border-color: var(--ag-edge);
  box-shadow: var(--ag-shadow-soft);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--ag-cyan);
  outline-offset: 2px;
  border-radius: var(--ag-radius);
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-family: var(--ag-font-mono);
  font-size: 12px;
  line-height: 2;
  color: var(--ag-orange-soft);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ag-text);
}

.page-faq .faq-item__sign {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin: 5px 0 0 auto;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--ag-cyan);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}

.page-faq .faq-item__sign::before {
  left: 0;
  top: 8px;
  width: 18px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  left: 8px;
  top: 0;
  width: 2px;
  height: 18px;
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 18px 18px 46px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ag-muted);
}

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

.page-faq .faq-item__a p + p {
  margin-top: 8px;
}

.page-faq .faq-item__a strong {
  color: var(--ag-cyan);
  font-weight: 700;
}

/* ---------- 多端模块 ---------- */
.page-faq .faq-multi {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

.page-faq .faq-multi .faq-list {
  margin-top: 0;
}

.page-faq .faq-multi__media {
  margin: 0;
}

.page-faq .faq-multi__media .ag-media__frame {
  aspect-ratio: 10 / 7;
  border: 1px solid var(--ag-edge);
  border-radius: var(--ag-radius-lg);
  overflow: hidden;
  background: var(--ag-panel-2);
  box-shadow: var(--ag-shadow-soft);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-prep {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqprep;
}

.page-faq .faq-prep__item {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 12px 16px;
  border-left: 2px solid var(--ag-orange);
  border-radius: 0 var(--ag-radius) var(--ag-radius) 0;
  background: rgba(255, 91, 46, .06);
  font-size: 15px;
  color: var(--ag-text);
}

.page-faq .faq-prep__item::before {
  counter-increment: faqprep;
  content: counter(faqprep, decimal-leading-zero);
  font-family: var(--ag-font-mono);
  font-size: 12px;
  color: var(--ag-orange-soft);
}

.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 36px;
}

.page-faq .faq-links__item {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--ag-edge-soft);
  border-radius: var(--ag-radius);
  background: rgba(11, 23, 48, .5);
  text-decoration: none;
  color: var(--ag-text);
  transition: border-color .24s ease, transform .24s ease;
}

.page-faq .faq-links__item:hover,
.page-faq .faq-links__item:focus-visible {
  border-color: var(--ag-edge);
  transform: translateY(-2px);
}

.page-faq .faq-links__label {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--ag-white);
}

.page-faq .faq-links__meta {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ag-muted);
}

.page-faq .ag-note {
  margin-top: 22px;
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-steps__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-multi {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
    align-items: center;
  }

  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
    padding: 20px;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-rail__link {
    border-radius: var(--ag-radius);
  }

  .page-faq .faq-rail__code {
    margin-left: auto;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero__title {
    font-size: 54px;
  }
}
<<<END>>>