.page-faq {
  --faq-rail: 296px;
  --faq-gap: clamp(30px, 4.4vw, 64px);
  --faq-hair: rgba(255, 255, 255, 0.10);
  --faq-hair-fire: rgba(255, 176, 122, 0.26);
  background: var(--night);
  color: var(--white);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq .container {
  width: 100%;
  max-width: var(--rail-w);
  margin: 0 auto;
  padding-left: var(--edge);
  padding-right: var(--edge);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-intro {
  position: relative;
  padding: clamp(40px, 6vw, 76px) 0 clamp(48px, 6vw, 80px);
  background:
    radial-gradient(130% 96% at 92% -14%, rgba(255, 91, 27, 0.30) 0%, rgba(255, 91, 27, 0) 60%),
    linear-gradient(166deg, var(--night-deep) 0%, var(--night) 64%);
  overflow: hidden;
}

.page-faq .faq-intro::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 74%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 74%);
  pointer-events: none;
}

.page-faq .breadcrumb {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(24px, 3.4vw, 44px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

.page-faq .breadcrumb a {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms ease, border-color 180ms ease;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--fire-soft);
  border-color: var(--faq-hair-fire);
}

.page-faq .breadcrumb span[aria-hidden="true"] {
  color: var(--slate);
}

.page-faq .faq-intro-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 46px);
  align-items: end;
}

.page-faq .eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fire-soft);
}

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

.page-faq .eyebrow .mono {
  color: var(--ink-3);
  font-weight: 400;
}

.page-faq .faq-intro h1 {
  margin: 18px 0 20px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.9rem, 4.4vw, 3.2rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--white);
  text-wrap: balance;
}

.page-faq .faq-hl {
  position: relative;
  display: inline-block;
  color: var(--fire);
}

.page-faq .faq-hl::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.12em;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--fire) 0%, rgba(255, 91, 27, 0) 100%);
}

.page-faq .faq-intro .lead {
  max-width: 34em;
  margin: 0;
  font-size: clamp(0.96rem, 1.5vw, 1.06rem);
  line-height: 1.85;
  color: var(--ink-2);
}

.page-faq .faq-quick-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--faq-hair);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--ink-3);
}

.page-faq .faq-quick-stats b {
  display: inline-block;
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--lime);
  letter-spacing: 0.04em;
}

.page-faq .faq-intro-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--faq-hair-fire);
  aspect-ratio: 12 / 7;
  background: rgba(58, 63, 74, 0.32);
}

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

/* ---------- 主体：侧栏 + 问答流 ---------- */

.page-faq .faq-main {
  padding: clamp(34px, 5vw, 64px) 0 clamp(60px, 8vw, 104px);
  background: var(--night);
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.4vw, 44px);
  align-items: start;
}

.page-faq .faq-side-inner {
  padding: 18px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(58, 63, 74, 0.40) 0%, rgba(21, 23, 28, 0.55) 100%);
}

.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border: 1px solid var(--faq-hair-fire);
  border-radius: var(--radius-pill);
  background: rgba(14, 16, 20, 0.66);
  color: var(--ink-3);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.page-faq .faq-search:focus-within {
  border-color: var(--fire);
  box-shadow: 0 0 0 3px rgba(255, 91, 27, 0.18);
}

.page-faq .faq-search-icon {
  flex: 0 0 auto;
  color: var(--fire-soft);
}

.page-faq .faq-search input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  outline: none;
  appearance: none;
}

.page-faq .faq-search input::placeholder {
  color: var(--ink-3);
}

.page-faq .faq-side-title {
  margin: 22px 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.page-faq .faq-cats {
  display: flex;
  flex-direction: row;
  gap: 6px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-cats li {
  flex: 0 0 auto;
}

.page-faq .faq-cats a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-pill);
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.page-faq .faq-cats a:hover,
.page-faq .faq-cats a:focus-visible {
  background: rgba(255, 91, 27, 0.14);
  border-color: var(--fire);
  color: var(--white);
}

.page-faq .faq-cat-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--fire-soft);
}

.page-faq .faq-cat-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
}

.page-faq .faq-side-note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--faq-hair);
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-3);
}

/* ---------- 问答流 ---------- */

.page-faq .faq-stream {
  display: flex;
  flex-direction: column;
  gap: clamp(44px, 5.4vw, 72px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 120px;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--fire);
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.2vw, 1.6rem);
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-group-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}

.page-faq .faq-band {
  margin: 22px 0 6px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--faq-hair-fire);
  aspect-ratio: 3 / 2;
  background: rgba(58, 63, 74, 0.32);
}

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

.page-faq .qa {
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .qa-q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: clamp(0.98rem, 1.6vw, 1.06rem);
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
  transition: color 180ms ease;
}

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

.page-faq .qa-q:hover,
.page-faq .qa-q:focus-visible {
  color: var(--fire-soft);
}

.page-faq .qa-num {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--fire);
}

.page-faq .qa-text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa-chev {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border: 1px solid var(--faq-hair-fire);
  border-radius: 50%;
  transition: background 200ms ease, border-color 200ms ease;
}

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

.page-faq .qa-chev::before {
  width: 8px;
  height: 1.5px;
}

.page-faq .qa-chev::after {
  width: 1.5px;
  height: 8px;
  transition: transform 200ms ease;
}

.page-faq .qa[open] .qa-chev {
  background: var(--fire);
  border-color: var(--fire);
}

.page-faq .qa[open] .qa-chev::before,
.page-faq .qa[open] .qa-chev::after {
  background: var(--white);
}

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

.page-faq .qa-body {
  padding: 0 0 20px 36px;
  animation: faq-drop 240ms ease both;
}

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

.page-faq .qa-body p {
  max-width: 40em;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-faq .qa-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  margin-top: 14px;
  padding: 10px 14px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.024);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}

.page-faq .qa-note b {
  font-weight: 700;
  color: var(--fire-soft);
}

.page-faq .qa-link {
  color: var(--sky);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 196, 255, 0.32);
  transition: color 180ms ease, border-color 180ms ease;
}

.page-faq .qa-link:hover,
.page-faq .qa-link:focus-visible {
  color: var(--white);
  border-color: var(--white);
}

.page-faq .qa-note .copy-btn {
  margin-left: auto;
  padding: 5px 12px;
  border: 1px solid var(--faq-hair-fire);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--fire-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.page-faq .qa-note .copy-btn:hover,
.page-faq .qa-note .copy-btn:focus-visible {
  background: rgba(255, 91, 27, 0.16);
  color: var(--white);
}

.page-faq .qa-note .copy-btn[data-copied="true"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--night);
}

/* ---------- 收尾：还没解决 ---------- */

.page-faq .faq-ask {
  padding: clamp(56px, 8vw, 100px) 0 clamp(64px, 9vw, 112px);
  background: var(--mist);
  color: var(--night);
}

.page-faq .faq-ask-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 56px);
  align-items: start;
}

.page-faq .faq-ask .eyebrow {
  color: var(--fire-deep);
}

.page-faq .faq-ask .section-title {
  margin: 12px 0 18px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--night);
  text-wrap: balance;
}

.page-faq .faq-ask-copy > p {
  max-width: 34em;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: #4A505C;
}

.page-faq .faq-checklist {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 26px 0 30px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-checklist li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(21, 23, 28, 0.12);
  font-size: 14.5px;
  line-height: 1.6;
  color: #2C313B;
}

.page-faq .faq-checklist .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--fire-deep);
}

.page-faq .faq-ask-card {
  padding: clamp(22px, 3vw, 30px);
  border: 1px solid rgba(21, 23, 28, 0.10);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: 0 18px 44px rgba(21, 23, 28, 0.08);
}

.page-faq .faq-ask-card-label {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fire-deep);
}

.page-faq .faq-ask-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(21, 23, 28, 0.09);
}

.page-faq .faq-ask-key {
  flex: 0 0 auto;
  width: 42px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: #777E8B;
}

.page-faq .faq-val {
  flex: 1 1 160px;
  min-width: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--night);
  word-break: break-word;
}

.page-faq .faq-ask-row .copy-btn {
  flex: 0 0 auto;
  padding: 4px 11px;
  border: 1px solid rgba(201, 61, 6, 0.30);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--fire-deep);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.page-faq .faq-ask-row .copy-btn:hover,
.page-faq .faq-ask-row .copy-btn:focus-visible {
  background: var(--fire);
  border-color: var(--fire);
  color: var(--white);
}

.page-faq .faq-ask-row .copy-btn[data-copied="true"] {
  background: var(--night);
  border-color: var(--night);
  color: var(--lime);
}

.page-faq .faq-ask-card-note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: #777E8B;
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-faq .faq-ask-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-intro-grid {
    grid-template-columns: minmax(0, 58fr) minmax(0, 42fr);
    gap: clamp(36px, 4.6vw, 68px);
  }

  .page-faq .faq-cats {
    flex-direction: column;
    gap: 3px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-cats a {
    border-color: transparent;
    border-radius: var(--radius-md);
    white-space: normal;
  }

  .page-faq .faq-cat-count {
    margin-left: auto;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: var(--faq-gap);
  }

  .page-faq .faq-side-inner {
    position: sticky;
    top: clamp(96px, 13vh, 136px);
  }

  .page-faq .qa-body {
    padding-left: 40px;
    padding-right: clamp(0px, 3vw, 40px);
  }
}

@media (min-width: 1240px) {
  .page-faq .faq-ask-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 400px);
  }
}

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

  .page-faq .qa-chev,
  .page-faq .qa-chev::after,
  .page-faq .faq-cats a,
  .page-faq .qa-q,
  .page-faq .copy-btn {
    transition: none;
  }
}
<<<END>>>