.page-faq {
  --faq-hair: rgba(22, 69, 110, 0.75);
  --faq-hair-soft: rgba(22, 69, 110, 0.45);
  --faq-signal-wash: rgba(0, 229, 176, 0.08);
  --faq-flare-wash: rgba(255, 122, 26, 0.1);
  padding-block: clamp(18px, 3vw, 30px) clamp(56px, 9vw, 108px);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  margin-inline: clamp(12px, 4vw, 24px);
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-xl);
  padding: clamp(26px, 5vw, 52px) clamp(20px, 4.5vw, 48px);
  background:
    linear-gradient(135deg, rgba(0, 229, 176, 0.16), rgba(0, 0, 0, 0) 46%),
    linear-gradient(180deg, var(--ink-800), var(--ink-900));
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -14%;
  width: 48%;
  height: 176%;
  border-radius: var(--r-xl);
  transform: rotate(13deg);
  background: linear-gradient(180deg, rgba(0, 229, 176, 0.14), rgba(255, 122, 26, 0.12));
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 6%;
  bottom: -42%;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(0, 229, 176, 0.24), rgba(0, 229, 176, 0));
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-hero-copy h1 {
  margin: 0.35em 0 0.6em;
  font-size: clamp(26px, 5.6vw, 50px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  font-weight: 800;
}

.page-faq .faq-hero-copy .lede {
  max-width: 46ch;
  margin: 0;
}

.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 12px;
  border-left: 2px solid var(--signal);
}

.page-faq .faq-stat-value {
  font-family: var(--font-mono);
  font-size: var(--step-28);
  color: var(--signal-soft);
  line-height: 1.1;
}

.page-faq .faq-stat-unit {
  margin-left: 2px;
  font-family: var(--font-sans);
  font-size: var(--step-14);
  font-weight: 600;
}

.page-faq .faq-stat-label {
  font-size: var(--step-12);
  color: var(--text-dim);
}

.page-faq .faq-hero-price {
  align-self: end;
  border: 1px solid rgba(255, 122, 26, 0.5);
  border-radius: var(--r-lg);
  padding: clamp(20px, 3.4vw, 28px);
  background: var(--glass);
  box-shadow: var(--shadow-flare);
}

.page-faq .faq-price-label {
  margin: 0 0 6px;
  font-size: var(--step-12);
  letter-spacing: 0.14em;
  color: var(--text-dim);
}

.page-faq .faq-price-line {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0;
}

.page-faq .faq-price-num {
  font-family: var(--font-mono);
  font-size: clamp(56px, 14vw, 84px);
  line-height: 1;
  color: var(--flare);
}

.page-faq .faq-price-unit {
  font-size: var(--step-20);
  font-weight: 700;
  color: var(--flake, var(--flare-soft));
}

.page-faq .faq-price-note {
  margin: 10px 0 18px;
  font-size: var(--step-14);
  color: var(--text-dim);
}

/* ---------- 主体两列 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  margin-top: clamp(30px, 5vw, 58px);
}

.page-faq .faq-index {
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-lg);
  padding: 12px;
  background: var(--glass);
}

.page-faq .faq-index-title {
  margin: 0 0 10px;
  padding-inline: 8px;
  font-size: var(--step-12);
  letter-spacing: 0.16em;
  color: var(--text-dim);
}

.page-faq .faq-index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index-item {
  flex: none;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border-radius: var(--r-pill);
  border-left: 2px solid transparent;
  color: var(--text-dim);
  font-size: var(--step-14);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-index-link .num {
  font-family: var(--font-mono);
  color: var(--signal);
  font-size: var(--step-12);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--text);
  background: var(--faq-signal-wash);
  border-left-color: var(--signal);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-group {
  padding-left: 16px;
  border-left: 3px solid var(--faq-hair-soft);
  scroll-margin-top: 92px;
  transition: border-color 0.25s ease;
}

.page-faq .faq-group:target {
  border-left-color: var(--signal);
}

.page-faq .faq-group + .faq-group,
.page-faq .faq-group + .faq-support {
  margin-top: clamp(38px, 6vw, 64px);
}

.page-faq .faq-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin-bottom: 18px;
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: var(--step-14);
  letter-spacing: 0.14em;
  color: var(--signal);
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.2;
  font-weight: 800;
}

.page-faq .faq-group-sub {
  flex-basis: 100%;
  margin: 0;
  font-size: var(--step-14);
  color: var(--text-dim);
}

/* ---------- 配图 ---------- */
.page-faq .faq-media {
  margin: 0 0 18px;
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--r-md);
  object-fit: cover;
}

.page-faq .faq-media figcaption {
  margin-top: 8px;
  font-size: var(--step-12);
  color: var(--text-dim);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-lg);
  background: var(--glass);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(0, 229, 176, 0.55);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

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

.page-faq .faq-q {
  flex: 1;
  margin: 0;
  font-size: var(--step-16);
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .faq-chev {
  position: relative;
  flex: none;
  width: 24px;
  height: 24px;
  border: 1px solid var(--faq-hair);
  border-radius: 50%;
}

.page-faq .faq-chev::before,
.page-faq .faq-chev::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--signal);
  transform: translate(-50%, -50%);
}

.page-faq .faq-chev::before {
  width: 10px;
  height: 2px;
}

.page-faq .faq-chev::after {
  width: 2px;
  height: 10px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-faq .faq-item[open] .faq-chev {
  border-color: rgba(0, 229, 176, 0.6);
}

.page-faq .faq-item[open] .faq-chev::after {
  opacity: 0;
  transform: translate(-50%, -50%) scaleY(0.1);
}

.page-faq .faq-a {
  padding: 0 18px 18px;
  font-size: var(--step-14);
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-a p {
  margin: 0 0 0.7em;
}

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

.page-faq .faq-a strong {
  color: var(--text);
}

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

.page-faq .faq-conclusion {
  margin-top: 14px;
  padding: 12px 14px;
  border-left: 3px solid var(--flare);
  border-radius: var(--r-md);
  background: var(--faq-flare-wash);
  color: var(--text);
  font-size: var(--step-14);
}

/* ---------- 联系收尾 ---------- */
.page-faq .faq-support {
  padding: clamp(22px, 4vw, 38px) clamp(18px, 3.4vw, 34px);
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-xl);
  background:
    linear-gradient(122deg, rgba(0, 229, 176, 0.14), rgba(255, 122, 26, 0.12)),
    var(--ink-800);
  scroll-margin-top: 92px;
}

.page-faq .faq-support-text {
  max-width: 62ch;
  margin: 0 0 22px;
  font-size: var(--step-16);
  line-height: 1.75;
  color: var(--text);
}

.page-faq .faq-support-text strong {
  font-family: var(--font-mono);
  color: var(--signal-soft);
  word-break: break-all;
}

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

.page-faq .faq-support-card {
  padding: 16px 18px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-lg);
  background: var(--glass);
}

.page-faq .faq-support-key {
  margin: 0 0 6px;
  font-size: var(--step-12);
  letter-spacing: 0.14em;
  color: var(--text-dim);
}

.page-faq .faq-support-val {
  margin: 0 0 6px;
  font-size: var(--step-20);
  font-weight: 700;
  color: var(--text);
  word-break: break-all;
}

.page-faq .faq-support-note {
  margin: 0;
  font-size: var(--step-12);
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .faq-support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

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

  .page-faq .faq-hero-stats {
    gap: 16px 40px;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(232px, 0.85fr);
    align-items: end;
  }

  .page-faq .faq-hero {
    margin-inline: 0;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 84px;
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
  }

  .page-faq .faq-index-link {
    border-radius: var(--r-md);
    white-space: normal;
  }

  .page-faq .faq-item > summary {
    padding: 18px 22px;
  }

  .page-faq .faq-a {
    padding: 0 22px 20px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-layout {
    grid-template-columns: 252px minmax(0, 1fr);
    gap: 60px;
  }
}

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

.page-faq {
  --flake: currentColor;
}