.page-faq {
  --faq-no: 2.2rem;
  --faq-mark: 1.4rem;
  --faq-gap: 0.65rem;
  --faq-padl: 0.9rem;
  background: var(--ink-green);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 1.4rem 0 2.6rem;
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: var(--night-blue);
  clip-path: polygon(56% 0, 100% 0, 100% 100%, 14% 100%);
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    116deg,
    rgba(242, 245, 236, 0.055) 0 1px,
    transparent 1px 46px
  );
}
.page-faq .faq-hero .breadcrumb {
  margin-bottom: 1.4rem;
}
.page-faq .faq-hero__eyebrow {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--lime);
  text-transform: uppercase;
}
.page-faq .faq-hero__title {
  margin: 0.8rem 0 1rem;
  max-width: 15em;
  font-size: clamp(1.9rem, 7.4vw, 3.4rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(242, 245, 236, 0.78);
}

.page-faq .faq-jump {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.page-faq .faq-jump a {
  display: inline-flex;
  align-items: center;
  min-height: 2.2rem;
  padding: 0 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}
.page-faq .faq-jump a:hover {
  border-color: var(--lime);
  background: rgba(201, 255, 61, 0.1);
  color: var(--lime);
}
.page-faq .faq-jump a:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

/* ---------- 区块骨架 ---------- */
.page-faq .faq-block {
  padding: 2.4rem 0 2rem;
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.7rem;
}
.page-faq .faq-block__index {
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--brick);
}
.page-faq .faq-block__title {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-faq .faq-block__lead {
  margin: 0 0 1.2rem;
  max-width: 52ch;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--chalk);
}

/* ---------- 问答手风琴 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--line);
}
.page-faq .qa {
  position: relative;
  border-bottom: 1px solid var(--line);
}
.page-faq .qa::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--lime);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.28s var(--ease);
}
.page-faq .qa[open]::before {
  transform: scaleY(1);
}

.page-faq .qa__summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: var(--faq-no) 1fr var(--faq-mark);
  grid-template-areas:
    "no  q   mark"
    ".   tag mark";
  gap: 0.35rem var(--faq-gap);
  padding: 1rem 0.8rem 1rem var(--faq-padl);
  transition: background 0.22s var(--ease);
}
.page-faq .qa__summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa__summary:hover {
  background: rgba(201, 255, 61, 0.05);
}
.page-faq .qa__summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-faq .qa__no {
  grid-area: no;
  align-self: start;
  padding-top: 0.15rem;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--lime-dim);
}
.page-faq .qa__tag {
  grid-area: tag;
  justify-self: start;
  padding: 0.05rem 0.42rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--chalk);
  white-space: nowrap;
}
.page-faq .qa__q {
  grid-area: q;
  font-size: 0.94rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--paper);
}
.page-faq .qa__mark {
  grid-area: mark;
  position: relative;
  align-self: center;
  width: 0.9rem;
  height: 0.9rem;
}
.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--lime);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}
.page-faq .qa__mark::before {
  left: 0;
  top: 50%;
  width: 100%;
  height: 1px;
  transform: translateY(-50%);
}
.page-faq .qa__mark::after {
  top: 0;
  left: 50%;
  height: 100%;
  width: 1px;
  transform: translateX(-50%);
}
.page-faq .qa[open] .qa__mark::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa__body {
  margin: 0 0.9rem 1.1rem
    calc(var(--faq-padl) + var(--faq-no) + var(--faq-gap));
  max-width: 62ch;
}
.page-faq .qa__body p {
  margin: 0 0 0.7rem;
  font-size: 0.88rem;
  line-height: 1.85;
  color: rgba(242, 245, 236, 0.8);
}
.page-faq .qa__body p:last-child {
  margin-bottom: 0;
}
.page-faq .qa__link {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--lime-line);
  transition: border-color 0.2s var(--ease);
}
.page-faq .qa__link:hover {
  border-bottom-color: var(--lime);
}
.page-faq .qa__link:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

/* ---------- 图文 ---------- */
.page-faq .qa-figure {
  margin: 1.1rem 0 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--stand-slate);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.page-faq .qa-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.page-faq .qa-figure--4x3 img {
  aspect-ratio: 4 / 3;
}
.page-faq .qa-figure__cap {
  padding: 0.65rem 0.85rem;
  border-top: 1px solid var(--line);
  font-size: 0.76rem;
  line-height: 1.65;
  color: var(--chalk);
}

/* ---------- 纠错流程条 ---------- */
.page-faq .fix-flow {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}
.page-faq .fix-flow__step {
  position: relative;
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0.75rem;
  align-items: start;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(22, 36, 31, 0.6);
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease),
    transform 0.22s var(--ease);
}
.page-faq .fix-flow__step:hover {
  border-color: var(--lime-line);
  background: rgba(201, 255, 61, 0.07);
  transform: translateX(2px);
}
.page-faq .fix-flow__no {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--brick);
  padding-top: 0.15rem;
}
.page-faq .fix-flow__text {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.75;
  color: rgba(242, 245, 236, 0.82);
}

/* ---------- 联络收束 ---------- */
.page-faq .faq-end {
  position: relative;
  padding: 2.6rem 0 2.4rem;
  background: var(--night-blue);
  border-top: 1px solid var(--line);
}
.page-faq .faq-end::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--lime), transparent 62%);
  opacity: 0.65;
}
.page-faq .faq-end__grid {
  display: grid;
  gap: 1.6rem;
}
.page-faq .faq-end__eyebrow {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--lime);
}
.page-faq .faq-end__title {
  margin: 0.6rem 0 0.7rem;
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.page-faq .faq-end__text {
  margin: 0;
  max-width: 40ch;
  font-size: 0.88rem;
  line-height: 1.85;
  color: rgba(242, 245, 236, 0.76);
}
.page-faq .faq-end__cards {
  display: grid;
  gap: 0.75rem;
}
.page-faq .reach {
  padding: 1.05rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(7, 19, 15, 0.55);
  transition: border-color 0.22s var(--ease);
}
.page-faq .reach:hover {
  border-color: var(--lime-line);
}
.page-faq .reach__key {
  margin: 0 0 0.45rem;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--chalk);
}
.page-faq .reach__val {
  margin: 0 0 0.5rem;
  font-family: var(--mono);
  font-size: 1.02rem;
  letter-spacing: 0.01em;
  color: var(--paper);
  word-break: break-word;
}
.page-faq .reach__val--lime {
  color: var(--lime);
}
.page-faq .reach__note {
  margin: 0;
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--chalk);
}
.page-faq .faq-end__addr {
  margin: 1.6rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--chalk);
}

/* ---------- 平板 ---------- */
@media (min-width: 760px) {
  .page-faq {
    --faq-no: 2.8rem;
    --faq-padl: 1.1rem;
    --faq-gap: 1rem;
  }
  .page-faq .faq-hero {
    padding: 1.8rem 0 3.4rem;
  }
  .page-faq .faq-hero__lead {
    font-size: 1rem;
  }
  .page-faq .faq-block {
    padding: 3.2rem 0 2.6rem;
  }
  .page-faq .faq-block__title {
    font-size: 1.6rem;
  }
  .page-faq .qa__summary {
    grid-template-columns: var(--faq-no) 7rem 1fr var(--faq-mark);
    grid-template-areas: "no tag q mark";
    align-items: center;
    gap: 0 var(--faq-gap);
    padding: 1.15rem 1rem 1.15rem var(--faq-padl);
  }
  .page-faq .qa__no {
    padding-top: 0;
  }
  .page-faq .qa__q {
    font-size: 1rem;
  }
  .page-faq .qa__body {
    margin-left: calc(var(--faq-padl) + var(--faq-no) + 7rem + 2rem);
    margin-right: 1rem;
    margin-bottom: 1.4rem;
  }
  .page-faq .qa-figure {
    margin-top: 1.3rem;
  }
}

@media (min-width: 900px) {
  .page-faq .fix-flow {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.6rem;
    margin-top: 1.8rem;
  }
  .page-faq .fix-flow__step:not(:last-child)::after {
    content: "→";
    position: absolute;
    right: -1.1rem;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--mono);
    font-size: 0.85rem;
    line-height: 1;
    color: var(--lime-dim);
    pointer-events: none;
  }
  .page-faq .faq-end__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 2.2rem;
    align-items: start;
  }
  .page-faq .faq-end__cards {
    grid-template-columns: 1fr;
  }
  .page-faq .faq-end__title {
    font-size: 1.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa::before,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .fix-flow__step,
  .page-faq .faq-jump a {
    transition: none;
  }
  .page-faq .fix-flow__step:hover {
    transform: none;
  }
}
<<<END>>>