.page-faq {
  --faq-pad-x: 18px;
  padding-bottom: 8px;
}

.page-faq .faq-crumbs-row {
  padding-top: 20px;
}

.page-faq .faq-crumbs-row a {
  color: var(--yf-mist);
  text-decoration: none;
  transition: color var(--yf-dur) var(--yf-ease);
}

.page-faq .faq-crumbs-row a:hover {
  color: var(--yf-mint);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding-top: 26px;
  padding-bottom: 36px;
  align-items: center;
}

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

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(2.1rem, 7.4vw, 4rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--yf-snow);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: var(--yf-t18);
  line-height: 1.85;
  color: var(--yf-snow);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--yf-line);
  border-radius: 999px;
  font-family: var(--yf-mono);
  font-size: var(--yf-t14);
  color: var(--yf-mist);
  text-decoration: none;
  transition: color var(--yf-dur) var(--yf-ease),
              border-color var(--yf-dur) var(--yf-ease),
              transform var(--yf-dur) var(--yf-ease);
}

.page-faq .faq-jump a:hover {
  color: var(--yf-mint);
  border-color: var(--yf-mint);
  transform: translateY(-2px);
}

.page-faq .faq-jump a:focus-visible {
  outline: 2px solid var(--yf-mint);
  outline-offset: 3px;
}

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

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

/* ---------- 分组 ---------- */

.page-faq .faq-body {
  padding-bottom: 10px;
}

.page-faq .faq-group {
  padding: 30px 0;
  scroll-margin-top: calc(var(--yf-hh, 64px) + 26px);
}

.page-faq .faq-group + .faq-group {
  border-top: 1px solid var(--yf-line);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.page-faq .faq-group__num {
  font-family: var(--yf-mono);
  font-size: var(--yf-t14);
  letter-spacing: 0.08em;
  color: var(--yf-mist);
  transition: color 200ms var(--yf-ease);
}

.page-faq .faq-group[data-active] .faq-group__num {
  color: var(--yf-mint);
}

.page-faq .faq-group__rule {
  width: 38px;
  height: 2px;
  border-radius: 1px;
  background: var(--yf-mint);
  opacity: 0.55;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.4rem, 4.6vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--yf-snow);
}

.page-faq .faq-list {
  display: grid;
  gap: 10px;
  max-width: 940px;
}

/* ---------- 单条问答 ---------- */

.page-faq .faq-item {
  background: var(--yf-panel);
  border: 1px solid var(--yf-line);
  border-radius: var(--yf-radius-m);
  transition: border-color var(--yf-dur) var(--yf-ease);
}

.page-faq .faq-item:not([open]):hover {
  border-color: #26385a;
}

.page-faq .faq-item[open] {
  border-color: var(--yf-mint);
}

.page-faq .faq-item summary {
  position: relative;
  display: block;
  padding: 16px 56px 16px var(--faq-pad-x);
  cursor: pointer;
  list-style: none;
  color: var(--yf-snow);
  border-radius: var(--yf-radius-m);
}

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

.page-faq .faq-item summary::before,
.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  right: 20px;
  top: 50%;
  width: 14px;
  height: 2px;
  border-radius: 2px;
  background: var(--yf-mint);
  transition: transform 180ms var(--yf-ease), opacity 180ms var(--yf-ease);
}

.page-faq .faq-item summary::before {
  transform: translateY(-50%);
}

.page-faq .faq-item summary::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-item[open] summary::after {
  transform: translateY(-50%) rotate(90deg) scaleX(0);
  opacity: 0;
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--yf-mint);
  outline-offset: 3px;
}

.page-faq .faq-item summary h3 {
  margin: 0;
  font-size: clamp(1rem, 2.6vw, 1.125rem);
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0;
  color: inherit;
}

.page-faq .faq-item__body {
  padding: 0 var(--faq-pad-x) 18px;
  animation: faqBodyIn 220ms var(--yf-ease) both;
}

.page-faq .faq-item__body p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--yf-snow);
  max-width: 64ch;
}

.page-faq .faq-item__body a {
  color: var(--yf-mint);
  text-decoration: none;
  border-bottom: 1px solid var(--yf-line);
  transition: border-color var(--yf-dur) var(--yf-ease);
}

.page-faq .faq-item__body a:hover {
  border-bottom-color: var(--yf-mint);
}

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

/* ---------- 排查示意图 ---------- */

.page-faq .faq-figure {
  margin: 22px 0 0;
  max-width: 940px;
}

.page-faq .faq-figure .yf-media__caption {
  margin-top: 10px;
  font-size: var(--yf-t14);
  line-height: 1.6;
  color: var(--yf-mist);
}

/* ---------- 收束区块 ---------- */

.page-faq .faq-close {
  margin: 26px 0 44px;
  padding: 26px 22px;
  border-radius: var(--yf-radius-l);
  background: var(--yf-paper);
  color: var(--yf-ink);
  scroll-margin-top: calc(var(--yf-hh, 64px) + 26px);
}

.page-faq .faq-close__label {
  margin: 0;
  font-family: var(--yf-mono);
  font-size: var(--yf-t14);
  letter-spacing: 0.06em;
  color: var(--yf-ink);
  opacity: 0.62;
}

.page-faq .faq-close__title {
  margin: 12px 0 0;
  font-size: clamp(1.5rem, 4.8vw, 2.25rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--yf-ink);
}

.page-faq .faq-close__lead {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--yf-ink);
  opacity: 0.86;
}

.page-faq .faq-close__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-close__row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  border-radius: var(--yf-radius-s);
  background: rgba(11, 18, 32, 0.05);
}

.page-faq .faq-close__k {
  font-family: var(--yf-mono);
  font-size: var(--yf-t14);
  color: var(--yf-ink);
  opacity: 0.6;
}

.page-faq .faq-close__v {
  font-size: 1.0625rem;
  font-weight: 700;
  word-break: break-word;
  color: var(--yf-ink);
}

.page-faq .faq-close__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-close__hint {
  font-size: var(--yf-t14);
  line-height: 1.6;
  color: var(--yf-ink);
  opacity: 0.7;
}

/* ---------- 右下常驻联系入口 ---------- */

.page-faq .faq-dock {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  padding: 9px 15px;
  border: 1px solid var(--yf-mint);
  border-radius: 999px;
  background: var(--yf-panel);
  font-size: var(--yf-t14);
  font-weight: 700;
  color: var(--yf-mint);
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(4, 8, 16, 0.5);
  transition: transform var(--yf-dur) var(--yf-ease),
              background-color var(--yf-dur) var(--yf-ease);
}

.page-faq .faq-dock:hover {
  transform: translateY(-2px);
  background: #16233a;
}

.page-faq .faq-dock:focus-visible {
  outline: 2px solid var(--yf-mint);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq {
    --faq-pad-x: 22px;
  }

  .page-faq .faq-item summary {
    padding-top: 19px;
    padding-bottom: 19px;
  }

  .page-faq .faq-close {
    padding: 34px 30px;
  }

  .page-faq .faq-close__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .faq-dock {
    right: 22px;
    bottom: 22px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 52px;
    padding-top: 44px;
    padding-bottom: 56px;
  }

  .page-faq .faq-group {
    padding: 44px 0;
  }

  .page-faq .faq-group__head {
    gap: 16px;
    margin-bottom: 22px;
  }

  .page-faq .faq-group__rule {
    width: 52px;
  }

  .page-faq .faq-figure {
    margin-left: 54px;
  }

  .page-faq .faq-close {
    padding: 44px 42px;
    margin-bottom: 60px;
  }

  .page-faq .faq-close__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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

  .page-faq .faq-jump a:hover,
  .page-faq .faq-dock:hover {
    transform: none;
  }
}
<<<END>>>