.page-faq {
  --faq-rail: 218px;
  --faq-panel-bg: var(--c-panel);
  --faq-hair: rgba(30, 74, 66, 0.9);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(14px, 3vw, 26px) clamp(30px, 5vw, 52px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -40% -12% auto -12%;
  height: 420px;
  background:
    radial-gradient(58% 100% at 12% 0%, rgba(56, 242, 208, 0.15), transparent 72%),
    radial-gradient(48% 88% at 92% 8%, rgba(255, 138, 61, 0.12), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  gap: 28px;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.06;
  font-size: clamp(2.05rem, 7vw, 3.5rem);
  color: var(--c-ink);
}

.page-faq .faq-hero__desc {
  margin: 18px 0 0;
  max-width: 60ch;
  color: var(--c-mist);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
}

.page-faq .faq-hero__hint {
  margin: 14px 0 0;
  max-width: 60ch;
  color: var(--c-dim);
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-faq .faq-hero__hint a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 208, 0.35);
}

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

.page-faq .faq-hero__panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 12px;
  padding: 22px 20px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, rgba(14, 42, 37, 0.96), rgba(16, 19, 20, 0.92));
  transform: rotate(-0.7deg);
}

.page-faq .faq-hero__panel .stat {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0 6px;
  min-width: 0;
}

.page-faq .faq-hero__panel .stat__value {
  font-family: var(--font-num);
  font-size: clamp(1.5rem, 5vw, 2rem);
  line-height: 1;
  font-weight: 700;
  color: var(--c-num);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero__panel .stat__value--cyan {
  color: var(--c-cyan);
}

.page-faq .faq-hero__panel .stat__value--orange {
  color: var(--c-orange);
}

.page-faq .faq-hero__panel .stat__unit {
  font-family: var(--font-num);
  font-size: 0.82rem;
  color: var(--c-mist);
}

.page-faq .faq-hero__panel .stat__label {
  display: block;
  flex: 0 0 100%;
  margin-top: 5px;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--c-mist);
}

/* ---------- 轨道 + 问答主体 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 26px;
  padding-block: clamp(6px, 2vw, 14px) clamp(40px, 7vw, 76px);
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
}

.page-faq .faq-rail__nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 2px 10px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--c-line) transparent;
}

.page-faq .faq-rail__nav::-webkit-scrollbar {
  height: 4px;
}

.page-faq .faq-rail__nav::-webkit-scrollbar-thumb {
  background: var(--c-line);
  border-radius: 4px;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex: 0 0 auto;
  scroll-snap-align: start;
  padding: 9px 15px;
  border: 1px solid var(--faq-hair);
  border-radius: 999px;
  background: rgba(14, 42, 37, 0.5);
  color: var(--c-mist);
  font-family: var(--font-body);
  font-size: 0.86rem;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--c-cyan);
  border-color: rgba(56, 242, 208, 0.55);
  background: rgba(56, 242, 208, 0.08);
}

.page-faq .faq-rail__count {
  font-family: var(--font-num);
  font-size: 0.74rem;
  color: var(--c-dim);
  font-variant-numeric: tabular-nums;
}

/* ---------- 分组 ---------- */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
  margin-bottom: clamp(34px, 6vw, 56px);
}

.page-faq .faq-group__head {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-group__head h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.18;
  font-size: clamp(1.4rem, 4.2vw, 2rem);
  color: var(--c-ink);
}

.page-faq .faq-group__desc {
  margin: 10px 0 0;
  max-width: 58ch;
  color: var(--c-mist);
  font-size: 0.94rem;
  line-height: 1.7;
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  border-bottom: 1px solid var(--faq-hair);
}

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

.page-faq .faq-item:first-child {
  border-top: 0;
}

.page-faq .faq-item__title {
  margin: 0;
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  width: 100%;
  padding: 17px 6px 17px 0;
  border: 0;
  background: transparent;
  color: var(--c-ink);
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.5;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-q:hover {
  color: var(--c-cyan);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
  border-radius: var(--r-xs);
}

.page-faq .faq-q__num {
  padding-top: 0.34em;
  font-family: var(--font-num);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--c-dim);
  font-variant-numeric: tabular-nums;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-q[aria-expanded="true"] {
  color: var(--c-cyan);
}

.page-faq .faq-q[aria-expanded="true"] .faq-q__num {
  color: var(--c-orange);
}

.page-faq .faq-q__icon {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 0.25em;
}

.page-faq .faq-q__icon::before,
.page-faq .faq-q__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--c-cyan);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

.page-faq .faq-q__icon::before {
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q__icon::after {
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q[aria-expanded="true"] .faq-q__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__panel {
  margin: 0 0 18px;
  padding: 15px 17px 17px;
  border-left: 3px solid var(--c-cyan);
  border-radius: var(--r-sm);
  background: var(--faq-panel-bg);
  animation: faqPanelIn 0.28s var(--ease) both;
}

.page-faq .faq-item__panel[hidden] {
  display: none;
}

.page-faq .faq-item__panel p {
  margin: 0;
  color: var(--c-mist);
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.78;
}

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

.page-faq .faq-item__panel strong {
  color: var(--c-num);
  font-family: var(--font-num);
  font-weight: 600;
}

.page-faq .faq-item__panel a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 208, 0.35);
}

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

.page-faq .faq-item__panel .num {
  font-family: var(--font-num);
  color: var(--c-num);
  font-weight: 600;
}

.page-faq .faq-group__figure {
  margin: 22px 0 0;
}

.page-faq .faq-group__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-md);
  border: 1px solid var(--faq-hair);
}

/* ---------- 满宽打断区块 ---------- */
.page-faq .faq-band {
  position: relative;
  overflow: hidden;
  margin: clamp(10px, 3vw, 22px) calc(-1 * var(--gutter)) clamp(30px, 6vw, 54px);
  padding-block: clamp(28px, 5vw, 52px);
  border-top: 1px solid var(--faq-hair);
  border-bottom: 1px solid var(--faq-hair);
  background: linear-gradient(178deg, var(--c-char), #0a1d19 58%, var(--c-char));
}

.page-faq .faq-band::after {
  content: "";
  position: absolute;
  inset: auto -10% -60% -10%;
  height: 240px;
  background: radial-gradient(50% 100% at 50% 100%, rgba(56, 242, 208, 0.12), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-band .container {
  position: relative;
}

.page-faq .faq-band__head h2 {
  margin: 12px 0 0;
  max-width: 26ch;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.14;
  font-size: clamp(1.5rem, 4.6vw, 2.3rem);
  color: var(--c-ink);
}

.page-faq .faq-band__desc {
  margin: 14px 0 0;
  max-width: 62ch;
  color: var(--c-mist);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-faq .faq-band__figure {
  margin: 24px 0 0;
}

.page-faq .faq-band__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-md);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-band__svgwrap {
  margin-top: 22px;
  padding: 16px 12px 8px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--r-md);
  background: rgba(6, 26, 21, 0.6);
}

.page-faq .faq-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-svg text {
  font-family: var(--font-num);
  font-size: 13px;
}

.page-faq .faq-svg .faq-svg__tick {
  font-size: 12px;
  fill: var(--c-dim);
}

.page-faq .faq-svg .faq-svg__hl {
  fill: var(--c-cyan);
}

.page-faq .faq-svg .faq-svg__warn {
  fill: var(--c-red);
}

/* ---------- 仍未解决 ---------- */
.page-faq .faq-cta {
  scroll-margin-top: 96px;
  padding: clamp(22px, 4vw, 36px);
  border: 1px solid rgba(255, 138, 61, 0.42);
  border-radius: var(--r-lg);
  background: linear-gradient(152deg, rgba(255, 138, 61, 0.12), rgba(14, 42, 37, 0.72) 52%, rgba(16, 19, 20, 0.86));
}

.page-faq .faq-cta h2 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.16;
  font-size: clamp(1.35rem, 4vw, 1.9rem);
  color: var(--c-ink);
}

.page-faq .faq-cta__body p {
  margin: 14px 0 0;
  max-width: 62ch;
  color: var(--c-mist);
  font-size: 0.95rem;
  line-height: 1.78;
}

.page-faq .faq-cta__body a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 208, 0.35);
}

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

.page-faq .faq-cta__facts {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.page-faq .faq-cta__facts .footer__fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-cta__facts .footer__fact-key {
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--c-dim);
}

.page-faq .faq-cta__facts .footer__fact-val {
  font-size: 0.95rem;
  color: var(--c-ink);
  word-break: break-word;
}

.page-faq .faq-cta__facts .footer__fact-val.num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  color: var(--c-num);
}

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

.page-faq .faq-cta__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--faq-hair);
  color: var(--c-dim);
  font-size: 0.8rem;
  line-height: 1.7;
}

/* ---------- 动效 ---------- */
@keyframes faqPanelIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 窄屏微调 ---------- */
@media (max-width: 479px) {
  .page-faq .faq-q {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .page-faq .faq-q__icon {
    grid-column: 2;
    justify-self: end;
    margin-top: 0.35em;
  }
}

/* ---------- 桌面：左侧粘性轨道 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 44px;
  }

  .page-faq .faq-cta__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-rail__nav {
    flex-direction: column;
    overflow: visible;
    padding: 0;
    scroll-snap-type: none;
  }

  .page-faq .faq-rail__link {
    width: 100%;
    justify-content: space-between;
    border-radius: var(--r-sm);
    padding: 11px 14px;
  }

  .page-faq .faq-q {
    gap: 16px;
    padding-block: 19px;
    font-size: 1.08rem;
  }

  .page-faq .faq-item__panel {
    margin-left: 42px;
    padding: 18px 22px 20px;
  }

  .page-faq .faq-band {
    margin-inline: calc(50% - 50vw);
    padding-inline: var(--gutter);
  }

  .page-faq .faq-band__svgwrap {
    padding: 22px 24px 12px;
  }
}

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

  .page-faq .faq-q__icon::before,
  .page-faq .faq-q__icon::after,
  .page-faq .faq-rail__link,
  .page-faq .faq-q {
    transition: none;
  }

  .page-faq .faq-hero__panel {
    transform: none;
  }
}