.page-faq {
  --faq-panel: rgba(27, 35, 80, 0.62);
  --faq-lime-soft: rgba(200, 255, 62, 0.42);
  background: var(--indigo);
  color: var(--ice);
  padding-bottom: clamp(48px, 7vw, 110px);
  overflow-x: clip;
}

.page-faq .faq-shell__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 56px);
  align-items: start;
  padding-top: clamp(24px, 4vw, 60px);
}

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

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  min-width: 0;
  border-left: 1px solid var(--line);
  padding-left: 16px;
}

.page-faq .faq-index__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--concrete);
}

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

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  padding: 9px 10px 9px 0;
  color: var(--text-soft);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.4;
  border-bottom: 1px solid var(--line-soft);
  transition: color 180ms var(--ease), padding-left 180ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--lime);
  padding-left: 6px;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--concrete);
}

.page-faq .faq-index__link:hover .faq-index__num,
.page-faq .faq-index__link:focus-visible .faq-index__num {
  color: var(--lime);
}

.page-faq .faq-index__card {
  margin-top: 24px;
  padding: 18px 18px 20px;
  background: linear-gradient(160deg, var(--stand), rgba(14, 20, 48, 0.7));
  border-top: 2px solid var(--lime);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-faq .faq-index__card-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-faq .faq-index__card-mail {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.01em;
  color: var(--ice);
  word-break: break-all;
}

.page-faq .faq-index__card-tel {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--lime);
}

.page-faq .faq-index__card-note {
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--concrete);
}

.page-faq .faq-index__btn {
  display: block;
  width: 100%;
  text-align: center;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-bottom: clamp(24px, 3.4vw, 44px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  display: block;
  width: 76px;
  height: 4px;
  margin-bottom: 20px;
  background: linear-gradient(90deg, var(--lime) 0 58%, var(--amber) 58% 100%);
}

.page-faq .breadcrumb {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--concrete);
}

.page-faq .faq-hero__kicker {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 60px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--ice);
}

.page-faq .faq-hero__lede {
  max-width: 62ch;
  margin: 18px 0 0;
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.75;
  color: var(--text-soft);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__chip {
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--text-soft);
  border: 1px solid var(--line);
  background: rgba(42, 53, 102, 0.28);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-top: clamp(38px, 5.4vw, 76px);
}

.page-faq .faq-group__head {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px 16px;
  align-items: start;
  padding-top: 18px;
  border-top: 2px solid var(--blueprint);
}

.page-faq .faq-group__head::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 62px;
  height: 2px;
  background: var(--lime);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--lime);
  padding-top: 6px;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 36px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--ice);
}

.page-faq .faq-group__sub {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--concrete);
}

.page-faq .faq-group__list {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-group__split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  position: relative;
  min-width: 0;
  background: linear-gradient(180deg, var(--faq-panel), rgba(14, 20, 48, 0.42));
  border: 1px solid var(--line-soft);
  transition: border-color 200ms var(--ease);
}

.page-faq .qa::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 12px;
  height: 12px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  pointer-events: none;
}

.page-faq .qa[open] {
  border-color: var(--faq-lime-soft);
  border-left: 3px solid var(--lime);
}

.page-faq .qa[open]::after {
  border-color: var(--faq-lime-soft);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--concrete);
  padding-top: 5px;
}

.page-faq .qa__text {
  font-size: clamp(15.5px, 1.7vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--ice);
  transition: color 180ms var(--ease);
}

.page-faq .qa__q:hover .qa__text {
  color: var(--lime);
}

.page-faq .qa__mark {
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 2px solid var(--concrete);
  border-bottom: 2px solid var(--concrete);
  transform: rotate(45deg);
  transition: transform 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .qa[open] .qa__mark {
  transform: rotate(-135deg);
  margin-top: 11px;
  border-color: var(--lime);
}

.page-faq .qa__a {
  padding: 0 18px 18px 44px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-faq .qa__a p {
  margin: 0 0 10px;
}

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

.page-faq .qa__steps {
  counter-reset: faq-step;
  display: grid;
  gap: 9px;
  margin: 12px 0;
  padding: 0;
  list-style: none;
}

.page-faq .qa__steps li {
  counter-increment: faq-step;
  position: relative;
  padding-left: 34px;
}

.page-faq .qa__steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: var(--lime);
  border-radius: 2px;
  transition: background-color 180ms var(--ease);
}

.page-faq .qa__steps li:hover::before {
  background: var(--amber);
}

.page-faq .qa__more {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
}

.page-faq .qa__more a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-lime-soft);
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .qa__more a:hover,
.page-faq .qa__more a:focus-visible {
  color: var(--ice);
  border-color: var(--ice);
}

/* ---------- 联系块 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 8px;
  margin: 4px 0 14px;
  padding: 16px 18px;
  background: linear-gradient(135deg, rgba(27, 35, 80, 0.92), rgba(14, 20, 48, 0.6));
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 10px;
  margin: 0;
  align-items: baseline;
}

.page-faq .faq-contact__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--concrete);
}

.page-faq .faq-contact__val {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.01em;
  color: var(--ice);
  word-break: break-word;
}

/* ---------- 配图 ---------- */
.page-faq .faq-shot {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink);
}

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

.page-faq .faq-shot__cap {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--concrete);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-shot--wide {
  max-width: 900px;
  margin-top: 26px;
}

/* ---------- 焦点可达 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 20px;
  }

  .page-faq .faq-index__card {
    max-width: 340px;
  }

  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 22px;
  }
}

@media (min-width: 1020px) {
  .page-faq .faq-shell__grid {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: clamp(34px, 5vw, 76px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-index__list {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .page-faq .faq-index__card {
    max-width: none;
  }

  .page-faq .faq-hero__lede {
    max-width: 58ch;
  }

  .page-faq .qa__q {
    padding: 17px 22px;
  }

  .page-faq .qa__a {
    padding: 0 26px 20px 52px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-group__split {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__mark,
  .page-faq .qa__text,
  .page-faq .qa,
  .page-faq .qa__steps li::before,
  .page-faq .faq-index__link {
    transition: none;
  }
}
<<<END>>>