.page-faq {
  --faq-panel: #ffffff;
  --faq-answer-bg: #e9efed;
  --faq-line-soft: rgba(15, 92, 72, .16);
  background: var(--gray-050);
  color: var(--text-900);
}

/* 面包屑 */
.page-faq .faq-crumb {
  padding: 16px 0 18px;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(760px 380px at 84% -6%, rgba(53, 240, 208, .22), transparent 64%),
    radial-gradient(520px 320px at 6% 104%, rgba(255, 107, 44, .16), transparent 60%),
    linear-gradient(158deg, var(--ink-900) 0%, var(--field-600) 58%, var(--field-500) 100%);
  color: var(--gray-050);
  padding: clamp(40px, 6vw, 76px) 0 clamp(90px, 10vw, 136px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 38px), 0 100%);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  align-items: center;
}

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

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan-400);
}

.page-faq .faq-kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--orange-500);
}

.page-faq .faq-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: #ffffff;
}

.page-faq .faq-hero__lede {
  margin: 0 0 26px;
  max-width: 44ch;
  font-family: var(--font-editorial);
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  line-height: 1.85;
  color: rgba(242, 245, 244, .84);
}

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

.page-faq .faq-hero__facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 26px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--glass-line);
  font-size: .86rem;
  color: rgba(242, 245, 244, .72);
}

.page-faq .faq-hero__facts b {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--cyan-400);
  margin-right: 5px;
}

.page-faq .faq-hero__art {
  margin: 0;
  border-radius: calc(var(--radius) + 6px);
  overflow: hidden;
  border: 1px solid var(--glass-line);
  box-shadow: 0 40px 78px -48px rgba(0, 0, 0, .92);
  background: rgba(11, 31, 26, .45);
}

.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

/* 主体 */
.page-faq .faq-body {
  padding: clamp(36px, 5vw, 64px) 0 clamp(56px, 7vw, 96px);
}

.page-faq .faq-body__inner {
  display: grid;
  gap: 22px;
}

/* 分组目录 */
.page-faq .faq-toc {
  background: var(--faq-panel);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 16px 16px 10px;
  box-shadow: var(--shadow-1);
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-faq .faq-toc__list {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 2px 2px 10px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 9px 15px;
  border-radius: 999px;
  border: 1px solid var(--gray-300);
  background: var(--gray-050);
  color: var(--text-900);
  font-size: .88rem;
  font-weight: 600;
  text-decoration: none;
  transition: background .2s var(--ease), box-shadow .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-toc__num {
  font-family: var(--font-mono);
  font-size: .74rem;
  color: var(--field-500);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  background: rgba(53, 240, 208, .14);
  color: var(--field-600);
  box-shadow: inset 2px 0 0 var(--cyan-400);
  outline: none;
}

.page-faq .faq-toc__link:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

.page-faq .faq-toc__hint {
  margin: 4px 0 6px;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--text-muted);
}

/* 问答分组 */
.page-faq .faq-groups {
  display: grid;
  gap: 22px;
  min-width: 0;
}

.page-faq .faq-group,
.page-faq .faq-contact {
  scroll-margin-top: 96px;
}

.page-faq .faq-group {
  background: var(--faq-panel);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 30px);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 16px;
  align-items: start;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gray-300);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.4vw, 42px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.05em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--field-500);
}

.page-faq .faq-group__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.22rem, 2.4vw, 1.58rem);
  line-height: 1.28;
  letter-spacing: -.01em;
}

.page-faq .faq-group__lede {
  margin: 0;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--text-muted);
}

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

/* 手风琴条目 */
.page-faq .faq-item {
  position: relative;
  border-bottom: 1px solid var(--gray-300);
}

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

.page-faq .faq-item__q {
  list-style: none;
  cursor: pointer;
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 16px 4px 16px 18px;
  font-size: 1.04rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text-900);
  transition: color .2s var(--ease);
}

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

.page-faq .faq-item__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: var(--cyan-400);
  opacity: 0;
  transition: opacity .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-item__q::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--field-500);
  transition: color .2s var(--ease);
}

.page-faq .faq-item__q:hover {
  color: var(--field-600);
}

.page-faq .faq-item__q:hover::before {
  opacity: .55;
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.page-faq .faq-item[open] > .faq-item__q::before {
  opacity: 1;
  background: var(--orange-500);
}

.page-faq .faq-item[open] > .faq-item__q::after {
  content: "–";
  color: var(--orange-500);
}

.page-faq .faq-item__a {
  margin: 0 0 16px 18px;
  padding: 14px 16px 15px;
  border-radius: var(--radius-sm);
  background: var(--faq-answer-bg);
  font-size: .94rem;
  line-height: 1.75;
  color: var(--text-muted);
  animation: faqAnswerIn .24s var(--ease);
}

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

.page-faq .faq-item__a a {
  color: var(--field-600);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(15, 92, 72, .35);
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  text-decoration-color: var(--orange-500);
}

@keyframes faqAnswerIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 排错四步 */
.page-faq .faq-flow {
  list-style: none;
  counter-reset: faqflow;
  display: grid;
  gap: 10px;
  margin: 20px 0 4px;
  padding: 0;
}

.page-faq .faq-flow__step {
  counter-increment: faqflow;
  position: relative;
  padding: 14px 14px 15px;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(53, 240, 208, .14), rgba(53, 240, 208, .03));
  font-size: .86rem;
  line-height: 1.62;
  color: var(--text-900);
}

.page-faq .faq-flow__step::before {
  content: counter(faqflow, decimal-leading-zero);
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--field-500);
}

/* 配图 */
.page-faq .faq-figure {
  margin: 20px 0 0;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--faq-panel);
}

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

.page-faq .faq-figure figcaption {
  padding: 11px 15px;
  font-size: .82rem;
  line-height: 1.65;
  color: var(--text-muted);
  border-top: 1px solid var(--gray-300);
}

/* 联系分组 */
.page-faq .faq-contact {
  background:
    radial-gradient(520px 280px at 92% 0%, rgba(53, 240, 208, .2), transparent 66%),
    linear-gradient(150deg, var(--ink-900), var(--field-600));
  color: var(--gray-050);
  border: 1px solid rgba(155, 247, 230, .24);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 32px);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-contact__head {
  border-bottom-color: var(--glass-line);
}

.page-faq .faq-contact .faq-group__num {
  -webkit-text-stroke: 1.5px rgba(53, 240, 208, .7);
}

.page-faq .faq-contact .faq-group__title {
  color: #ffffff;
}

.page-faq .faq-contact .faq-group__lede {
  color: rgba(242, 245, 244, .72);
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: 24px;
  margin-top: 22px;
}

.page-faq .faq-contact__sub {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan-400);
}

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

.page-faq .faq-contact__check li {
  position: relative;
  padding-left: 26px;
  font-size: .92rem;
  line-height: 1.65;
  color: rgba(242, 245, 244, .84);
}

.page-faq .faq-contact__check li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .45em;
  width: 9px;
  height: 9px;
  border: 2px solid var(--cyan-400);
  border-radius: 3px;
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 5px;
  padding: 12px 0;
  border-top: 1px solid var(--glass-line);
}

.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan-200);
}

.page-faq .faq-contact__value {
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  text-decoration: none;
  word-break: break-word;
}

.page-faq .faq-contact__value:hover,
.page-faq .faq-contact__value:focus-visible {
  color: var(--cyan-400);
  outline: none;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-contact__value:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
}

.page-faq .faq-contact__note {
  margin: 14px 0 18px;
  font-size: .82rem;
  line-height: 1.72;
  color: rgba(242, 245, 244, .66);
}

.page-faq .faq-contact__cta {
  display: inline-flex;
}

/* 断点：平板起两栏联系区、四步横排 */
@media (min-width: 720px) {
  .page-faq .faq-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 28px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .85fr);
  }

  .page-faq .faq-hero__art {
    transform: rotate(-1.2deg);
  }
}

/* 断点：桌面吸顶目录 */
@media (min-width: 1000px) {
  .page-faq .faq-body__inner {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 92px;
    padding: 22px 18px 14px;
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    gap: 2px;
    padding: 0;
    overflow: visible;
  }

  .page-faq .faq-toc__link {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border-color: transparent;
    background: transparent;
    white-space: normal;
    font-size: .92rem;
  }

  .page-faq .faq-toc__link:hover,
  .page-faq .faq-toc__link:focus-visible {
    background: rgba(53, 240, 208, .12);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__art {
    transform: none;
  }

  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item__q,
  .page-faq .faq-item__q::before,
  .page-faq .faq-item__q::after,
  .page-faq .faq-toc__link {
    transition: none;
  }
}
<<<END>>>