.page-faq {
  --faq-soft: rgba(242, 247, 248, 0.78);
  --faq-card: rgba(12, 42, 49, 0.58);
  --faq-sticky-top: 96px;
}

.page-faq .faq-crumb {
  padding-top: 20px;
  padding-bottom: 4px;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 24px 0 40px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -180px -14% auto -14%;
  height: 440px;
  background:
    radial-gradient(52% 92% at 16% 0%, rgba(23, 232, 143, 0.2), transparent 72%),
    radial-gradient(46% 86% at 88% 8%, rgba(43, 232, 224, 0.16), transparent 74%);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  display: grid;
  gap: 26px;
}

.page-faq .faq-kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-h1 {
  margin: 0 0 16px;
  font-size: clamp(30px, 7vw, 52px);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-h1 em {
  font-style: normal;
  color: var(--green);
}

.page-faq .faq-lede {
  margin: 0 0 22px;
  max-width: 48ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--faq-soft);
}

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

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 15px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: rgba(10, 22, 34, 0.62);
  color: var(--paper);
  font-size: 13.5px;
  line-height: 1;
  text-decoration: none;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(43, 232, 224, 0.14);
  transition: background 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--green);
  background: rgba(23, 232, 143, 0.1);
  color: var(--green);
}

.page-faq .faq-chip:hover::before,
.page-faq .faq-chip:focus-visible::before {
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(23, 232, 143, 0.18);
}

.page-faq .faq-hero-media {
  margin: 0;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  overflow: hidden;
}

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

/* 主体两栏 */
.page-faq .faq-layout {
  display: grid;
  gap: 32px;
  padding-bottom: 68px;
}

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

.page-faq .faq-sec {
  scroll-margin-top: 96px;
}

.page-faq .faq-sec + .faq-sec {
  margin-top: 48px;
}

.page-faq .faq-list {
  margin-top: 18px;
}

/* 手风琴 */
.page-faq .faq-item {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--faq-card);
  overflow: hidden;
  scroll-margin-top: 118px;
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .faq-item + .faq-item {
  margin-top: 10px;
}

.page-faq .faq-item:hover {
  border-color: rgba(43, 232, 224, 0.4);
}

.page-faq .faq-item[open] {
  border-color: rgba(23, 232, 143, 0.5);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-item[open]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--green);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

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

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: -2px;
}

.page-faq .faq-code {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

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

.page-faq .faq-chev {
  width: 9px;
  height: 9px;
  margin-right: 4px;
  border-right: 2px solid var(--mist);
  border-bottom: 2px solid var(--mist);
  transform: rotate(45deg);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-item[open] .faq-chev {
  transform: rotate(-135deg);
  border-color: var(--green);
}

.page-faq .faq-a {
  padding: 0 16px 18px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--faq-soft);
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 64ch;
}

.page-faq .faq-a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 232, 224, 0.4);
}

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

/* 使用记录配图 */
.page-faq .faq-history-media {
  margin: 20px 0 0;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  overflow: hidden;
}

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

.page-faq .faq-history-media .media-cap {
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  background: rgba(10, 22, 34, 0.7);
}

/* 人工协助 */
.page-faq .faq-help {
  margin-top: 20px;
  padding: 22px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, rgba(36, 27, 58, 0.72), rgba(12, 42, 49, 0.72) 62%);
}

.page-faq .faq-help-title {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 13px 0;
  border-bottom: 1px dashed rgba(30, 58, 70, 0.95);
}

.page-faq .faq-contact-label {
  min-width: 66px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .faq-contact-value {
  font-family: var(--font-mono);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-help-note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--faq-soft);
}

/* 右侧索引 */
.page-faq .faq-side {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-side-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(12, 42, 49, 0.6);
}

.page-faq .faq-side-card--link {
  background: rgba(36, 27, 58, 0.55);
}

.page-faq .faq-side-title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

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

.page-faq .faq-side-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 9px;
  align-items: baseline;
  padding: 8px 8px;
  border-radius: var(--r-sm);
  color: var(--faq-soft);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-side-link .mono {
  font-size: 12px;
  color: var(--cyan);
}

.page-faq .faq-side-link:hover,
.page-faq .faq-side-link:focus-visible {
  background: rgba(43, 232, 224, 0.1);
  color: var(--paper);
}

@media (min-width: 760px) {
  .page-faq .faq-lede {
    font-size: 18px;
  }

  .page-faq .faq-q {
    padding: 18px 20px;
    font-size: 16.5px;
  }

  .page-faq .faq-a {
    padding: 0 20px 20px;
  }

  .page-faq .faq-help {
    padding: 26px 24px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding: 36px 0 56px;
  }

  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.84fr);
    align-items: center;
    gap: 46px;
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 296px;
    gap: 42px;
    align-items: start;
    padding-bottom: 88px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: var(--faq-sticky-top);
  }

  .page-faq .faq-sec + .faq-sec {
    margin-top: 62px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-item,
  .page-faq .faq-chev,
  .page-faq .faq-side-link {
    transition: none;
  }
}
<<<END>>>