.page-faq {
  --faq-rule: var(--mint);
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 4vw, 34px) 0 clamp(30px, 6vw, 64px);
  background:
    radial-gradient(90% 70% at 88% 0%, rgba(95, 212, 255, .18), transparent 62%),
    radial-gradient(80% 60% at 0% 100%, rgba(200, 255, 77, .12), transparent 60%),
    linear-gradient(165deg, var(--ink) 0%, var(--ink-deep) 100%);
  color: var(--paper);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(95, 212, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(95, 212, 255, .07) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumb {
  color: rgba(245, 248, 252, .6);
}

.page-faq .faq-hero .breadcrumb a {
  color: rgba(245, 248, 252, .85);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumb a:hover {
  color: var(--signal);
}

.page-faq .faq-hero__frame {
  margin-top: 18px;
  border: 1px solid rgba(95, 212, 255, .26);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(200, 255, 77, .13), transparent 58%),
    radial-gradient(90% 80% at 0% 100%, rgba(95, 212, 255, .15), transparent 62%),
    rgba(22, 35, 58, .62);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-hero__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 16px;
  border-bottom: 1px solid rgba(95, 212, 255, .2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(245, 248, 252, .6);
}

.page-faq .faq-hero__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(95, 212, 255, .45);
}

.page-faq .faq-hero__dot:first-child {
  background: var(--signal);
}

.page-faq .faq-hero__label {
  margin-left: auto;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-faq .faq-hero__body {
  padding: clamp(22px, 5vw, 44px);
}

.page-faq .faq-hero .eyebrow {
  color: var(--signal);
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 6.6vw, 60px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: #ffffff;
}

.page-faq .faq-hero .lede {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 2.7vw, 17px);
  line-height: 1.8;
  color: rgba(245, 248, 252, .78);
}

/* 热门问法胶囊组 */
.page-faq .faq-finder {
  margin-top: clamp(20px, 4vw, 30px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  padding: 12px 14px;
  border-radius: 24px;
  border: 1px solid rgba(200, 255, 77, .32);
  background: rgba(5, 16, 30, .58);
}

.page-faq .faq-finder__icon {
  display: inline-flex;
  color: var(--signal);
  flex: none;
}

.page-faq .faq-finder__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: rgba(245, 248, 252, .55);
  margin-right: 2px;
}

.page-faq .faq-finder__chip {
  display: inline-block;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(200, 255, 77, .34);
  background: rgba(200, 255, 77, .13);
  color: #ffffff;
  font-size: 14px;
  text-decoration: none;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-finder__chip:hover,
.page-faq .faq-finder__chip:focus-visible {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink-deep);
}

.page-faq .faq-hero__art {
  margin: 0;
  border-top: 1px solid rgba(95, 212, 255, .18);
  aspect-ratio: 2 / 1;
  max-height: 300px;
  overflow: hidden;
}

.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .6;
}

/* ---------- 分组索引条 ---------- */
.page-faq .faq-index {
  position: sticky;
  top: var(--header-h);
  z-index: 15;
  background: rgba(245, 248, 252, .94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 12px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--faq-rule);
  background: #ffffff;
  color: var(--slate);
  font-size: 14px;
  text-decoration: none;
  transition: color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-index__link:hover {
  color: var(--ink);
  border-color: var(--ice);
}

.page-faq .faq-index__link[aria-current="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--signal);
  font-weight: 700;
}

.page-faq .faq-index__n {
  font-family: var(--font-mono);
  font-size: 12px;
  opacity: .85;
}

/* ---------- 问答区 ---------- */
.page-faq .faq-section {
  padding: clamp(34px, 6vw, 78px) 0 clamp(36px, 6vw, 80px);
}

.page-faq .faq-groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-faq .faq-group {
  --accent: var(--signal);
  min-width: 0;
  scroll-margin-top: calc(var(--header-h) + 76px);
}

.page-faq .faq-group:nth-child(2) {
  --accent: var(--ice);
}

.page-faq .faq-group:nth-child(3) {
  --accent: var(--amber);
}

.page-faq .faq-group:nth-child(4) {
  --accent: var(--signal);
}

.page-faq .faq-group__head {
  position: relative;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 72px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}

.page-faq .faq-group__num {
  display: inline-block;
  margin-bottom: 10px;
  padding: 4px 11px;
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(21px, 3.8vw, 28px);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-group__intro {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-group__list {
  display: block;
}

/* 折叠问答 */
.page-faq .qa {
  margin: 0 0 10px;
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius-md);
  background: #ffffff;
  overflow: hidden;
  scroll-margin-top: calc(var(--header-h) + 82px);
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-faq .qa:hover {
  border-color: var(--ice);
}

.page-faq .qa[open] {
  border-color: var(--ink);
  box-shadow: 0 16px 34px -26px rgba(10, 26, 47, .75);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 15px 16px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

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

.page-faq .qa__idx {
  flex: none;
  min-width: 22px;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--slate);
  transition: color .18s var(--ease);
}

.page-faq .qa[open] .qa__idx {
  color: var(--ink);
}

.page-faq .qa__chev {
  flex: none;
  margin-left: auto;
  margin-top: 3px;
  color: var(--slate);
  transition: transform .22s var(--ease), color .22s var(--ease);
}

.page-faq .qa[open] .qa__chev {
  transform: rotate(180deg);
  color: var(--ink);
}

.page-faq .qa__a {
  padding: 0 16px 17px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--slate);
}

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

.page-faq .qa[open] .qa__a {
  animation: faqAnswerIn .26s var(--ease);
}

@keyframes faqAnswerIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .qa__a a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--ice);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-faq .qa__a a:hover {
  text-decoration-color: var(--signal);
}

.page-faq .num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .93em;
  color: var(--ink);
  background: var(--signal-soft);
  padding: 1px 6px;
  border-radius: 6px;
}

/* 组内示意图 */
.page-faq .faq-figure {
  margin: 0 0 16px;
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: linear-gradient(140deg, rgba(95, 212, 255, .14), rgba(200, 255, 77, .1));
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--faq-rule);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--slate);
}

/* ---------- 仍未解决 ---------- */
.page-faq .faq-contact {
  padding: 0 0 clamp(36px, 7vw, 84px);
}

.page-faq .faq-contact__card {
  padding: clamp(24px, 5vw, 52px);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(85% 130% at 100% 0%, rgba(200, 255, 77, .16), transparent 58%),
    radial-gradient(70% 100% at 0% 100%, rgba(95, 212, 255, .16), transparent 62%),
    linear-gradient(150deg, var(--ink) 0%, var(--ink-deep) 100%);
  color: var(--paper);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-contact__card .eyebrow {
  color: var(--signal);
}

.page-faq .faq-contact__card h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 4.2vw, 34px);
  line-height: 1.2;
  letter-spacing: -.015em;
  color: #ffffff;
}

.page-faq .faq-contact__lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(245, 248, 252, .76);
}

.page-faq .faq-contact__channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-channel {
  display: block;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(95, 212, 255, .28);
  background: rgba(255, 255, 255, .05);
  text-decoration: none;
  transition: border-color .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-channel:hover {
  border-color: var(--signal);
  background: rgba(200, 255, 77, .1);
}

.page-faq .faq-channel__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: rgba(245, 248, 252, .55);
}

.page-faq .faq-channel__value {
  display: block;
  margin-top: 6px;
  font-size: clamp(15px, 3.2vw, 18px);
  font-weight: 700;
  color: #ffffff;
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(245, 248, 252, .62);
}

.page-faq .faq-contact__note a {
  color: var(--signal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-finder {
    flex-wrap: nowrap;
    border-radius: var(--radius-pill);
    padding: 10px 14px 10px 22px;
  }

  .page-faq .faq-contact__channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .qa__a {
    padding: 0 22px 20px;
    font-size: 15px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 48px;
    row-gap: 56px;
    align-items: start;
  }

  .page-faq .faq-group:nth-child(2),
  .page-faq .faq-group:nth-child(4) {
    margin-top: 88px;
  }

  .page-faq .faq-hero__art {
    max-height: 340px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa[open] .qa__a {
    animation: none;
  }

  .page-faq .qa__chev,
  .page-faq .faq-finder__chip,
  .page-faq .faq-index__link,
  .page-faq .faq-channel {
    transition: none;
  }
}
<<<END>>>