.page-faq {
  --faq-gap: clamp(1.5rem, 4vw, 3rem);
  --faq-tight: clamp(0.9rem, 2vw, 1.4rem);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-bottom: clamp(2rem, 6vw, 4rem);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -18%;
  top: 8%;
  width: 52vw;
  height: 52vw;
  max-width: 620px;
  max-height: 620px;
  border-radius: 46% 54% 58% 42% / 52% 40% 60% 48%;
  background: radial-gradient(circle at 40% 40%, rgba(200, 255, 61, 0.13), rgba(87, 224, 194, 0.05) 55%, transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero > .page-shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  align-items: end;
  margin-top: clamp(1.2rem, 3vw, 2rem);
}

.page-faq .faq-hero__intro h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.05rem, 7.4vw, 4.15rem);
  line-height: 1.06;
  letter-spacing: -0.012em;
  margin: 0.5rem 0 1rem;
  max-width: 18ch;
}

.page-faq .faq-hero__intro .lede {
  max-width: 56ch;
}

.page-faq .faq-hero__status {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__media {
  --media-ratio: 16 / 11;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

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

.page-faq .faq-hero__media .media__caption {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--mist);
  padding: 0.7rem 0.9rem;
  border-top: 1px solid var(--line);
  display: block;
}

/* ---------- 索引区 ---------- */
.page-faq .faq-index__note {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--mist);
  max-width: 38ch;
  margin: 0;
}

.page-faq .faq-index__grid {
  display: grid;
  gap: clamp(1.1rem, 3vw, 2rem);
  margin-top: clamp(1.4rem, 3vw, 2.2rem);
}

.page-faq .faq-index__cats {
  display: grid;
  gap: 0.7rem;
  align-content: start;
}

.page-faq .faq-cat {
  --cat: var(--lime);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1rem 1rem 1.15rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cat);
  border-radius: 4px var(--radius) var(--radius) 4px;
  background: linear-gradient(100deg, rgba(14, 42, 34, 0.95), rgba(7, 27, 22, 0.6));
  color: var(--paper);
  text-decoration: none;
  transition: background 240ms ease, transform 240ms ease, border-color 240ms ease;
}

.page-faq .faq-cat--aqua { --cat: var(--aqua); }
.page-faq .faq-cat--yellow { --cat: var(--yellow); }
.page-faq .faq-cat--red { --cat: var(--red); }

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  background: linear-gradient(100deg, rgba(20, 58, 46, 1), rgba(11, 35, 28, 0.9));
  border-color: var(--cat);
  transform: translateX(3px);
}

.page-faq .faq-cat__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  color: var(--cat);
  letter-spacing: 0.05em;
}

.page-faq .faq-cat__body {
  display: grid;
  gap: 0.28rem;
  min-width: 0;
}

.page-faq .faq-cat__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.02rem, 2.6vw, 1.2rem);
  line-height: 1.25;
}

.page-faq .faq-cat__desc {
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-cat__go {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--cat);
}

.page-faq .faq-index__aside {
  display: grid;
  gap: 0.9rem;
  align-content: start;
}

.page-faq .faq-index__aside .media {
  --media-ratio: 1 / 1;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.page-faq .faq-index__hint {
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--aqua);
}

.page-faq .faq-index__hint p {
  margin: 0.5rem 0 0.9rem;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-index__hint .index-tag {
  color: var(--aqua);
  margin: 0;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  position: relative;
}

.page-faq .faq-group--alt::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 42, 34, 0.55), rgba(7, 27, 22, 0));
  clip-path: polygon(0 0, 100% 3%, 100% 100%, 0 97%);
  z-index: 0;
  pointer-events: none;
}

.page-faq .faq-group > .page-shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-group__head {
  max-width: 62ch;
  margin-bottom: clamp(1.1rem, 3vw, 1.8rem);
}

.page-faq .faq-group__head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.4vw, 2.3rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0.45rem 0 0.6rem;
}

.page-faq .faq-group__lede {
  margin: 0;
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-faq .faq-list {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: start;
  padding: 1.05rem 0.15rem 1.05rem 0;
  cursor: pointer;
  list-style: none;
  transition: color 200ms ease, padding-left 200ms ease;
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  padding-left: 0.5rem;
  color: var(--lime);
}

.page-faq .faq-item__num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  color: var(--mist);
  padding-top: 0.42em;
  white-space: nowrap;
}

.page-faq .faq-item__q {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 2.9vw, 1.22rem);
  line-height: 1.38;
}

.page-faq .faq-item__sign {
  position: relative;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--mist);
  flex: none;
  transition: color 220ms ease, border-color 220ms ease;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: currentColor;
  border-radius: 1px;
}

.page-faq .faq-item__sign::before {
  width: 11px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__sign::after {
  width: 1.5px;
  height: 11px;
  transform: translate(-50%, -50%);
  transition: transform 240ms ease, opacity 240ms ease;
}

.page-faq .faq-item[open] .faq-item__sign {
  color: var(--lime);
  border-color: var(--lime);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

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

.page-faq .faq-item__a {
  padding: 0 0.4rem 1.25rem 2.55rem;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 62ch;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--mist);
  border-left: 2px solid var(--line);
  padding-left: 0.9rem;
}

.page-faq .faq-item__a a {
  color: var(--aqua);
  text-decoration: none;
  border-bottom: 1px solid rgba(87, 224, 194, 0.4);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 联系面板 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: clamp(1.1rem, 3vw, 2rem);
  margin-top: clamp(1.6rem, 4vw, 2.6rem);
  padding: clamp(1.2rem, 3.4vw, 2rem);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(20, 58, 46, 0.9), rgba(7, 27, 22, 0.95));
  box-shadow: inset 0 1px 0 rgba(200, 255, 61, 0.25);
}

.page-faq .faq-contact__main h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 3.6vw, 1.7rem);
  line-height: 1.2;
  margin: 0.4rem 0 0.6rem;
}

.page-faq .faq-contact__main p {
  margin: 0 0 1.1rem;
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.75;
  max-width: 48ch;
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  align-content: start;
}

.page-faq .faq-contact__list > div {
  display: grid;
  gap: 0.2rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-contact__list > div:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-contact__list dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-contact__list dd {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact__list dd a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.35);
}

.page-faq .faq-contact__list dd a:hover,
.page-faq .faq-contact__list dd a:focus-visible {
  color: var(--aqua);
  border-bottom-color: var(--aqua);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-index__cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact {
    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);
  }

  .page-faq .faq-index__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }

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

  .page-faq .faq-item > summary {
    padding-right: 0.6rem;
  }

  .page-faq .faq-item__a {
    padding-left: 3.1rem;
  }
}

@media (max-width: 420px) {
  .page-faq .faq-item__a {
    padding-left: 1.1rem;
  }

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

  .page-faq .faq-cat__go {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-item > summary,
  .page-faq .faq-item__sign,
  .page-faq .faq-item__sign::after {
    transition: none;
  }

  .page-faq .faq-cat:hover,
  .page-faq .faq-cat:focus-visible {
    transform: none;
  }

  .page-faq .faq-item > summary:hover,
  .page-faq .faq-item > summary:focus-visible {
    padding-left: 0;
  }
}
<<<END>>>