.page-faq {
  --faq-sticky: 108px;
  background: var(--ink-deep);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

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

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(1.5rem, 4vw, 2.5rem) 0 clamp(2.25rem, 5vw, 3.75rem);
  background:
    radial-gradient(90% 70% at 86% -18%, rgba(53, 240, 200, .15), transparent 62%),
    radial-gradient(65% 65% at -6% 112%, rgba(43, 42, 110, .4), transparent 70%),
    linear-gradient(180deg, #0B2A26 0%, #08201D 100%);
  border-bottom: 1px solid rgba(94, 122, 114, .35);
}

.page-faq .faq-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  list-style: none;
  margin: 0 0 clamp(1.5rem, 4vw, 2.5rem);
  padding: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .08em;
}

.page-faq .faq-crumbs a {
  color: var(--txt-faint);
  text-decoration: none;
}

.page-faq .faq-crumbs a:hover {
  color: var(--cyan);
}

.page-faq .faq-crumbs__sep {
  color: rgba(94, 122, 114, .8);
}

.page-faq .faq-crumbs [aria-current="page"] {
  color: var(--cyan-mist);
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin: 0 0 .9rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .2em;
  color: var(--cyan-mist);
}

.page-faq .faq-kicker__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 240, 200, .16);
}

.page-faq h1 {
  margin: 0 0 1.1rem;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 6.2vw, 4.1rem);
  line-height: 1.08;
  letter-spacing: -.02em;
}

.page-faq .faq-lede {
  max-width: 62ch;
  margin: 0;
  color: var(--txt-dim);
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  line-height: 1.78;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .75rem;
  list-style: none;
  margin: clamp(1.35rem, 3vw, 2rem) 0 0;
  padding: 0;
}

.page-faq .faq-chip {
  padding: .42rem .85rem;
  border: var(--hair-cyan);
  border-radius: var(--pill);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--cyan-mist);
  white-space: nowrap;
}

.page-faq .faq-hero__banner {
  margin: clamp(2rem, 4.5vw, 3.25rem) auto 0;
}

.page-faq .faq-hero__banner img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: var(--hair-cyan);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-shell {
  padding: clamp(2.5rem, 5vw, 4.25rem) 0 clamp(3rem, 6vw, 5rem);
}

.page-faq .faq-shell__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3.25rem);
  align-items: start;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  border-top: 1px solid rgba(53, 240, 200, .38);
  padding-top: .9rem;
}

.page-faq .faq-index__title {
  margin: 0 0 .85rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--cyan-mist);
}

.page-faq .faq-index ol {
  display: grid;
  gap: .1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-index a {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  min-height: 44px;
  padding: .55rem .6rem;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--txt-dim);
  text-decoration: none;
  font-size: .94rem;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--paper);
  border-left-color: var(--cyan);
  background: rgba(53, 240, 200, .08);
}

.page-faq .faq-index__num {
  min-width: 1.7em;
  font-family: var(--font-mono);
  font-size: .78rem;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: var(--faq-sticky);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(2.25rem, 4.5vw, 3.5rem);
  padding-top: clamp(2.25rem, 4.5vw, 3.5rem);
  border-top: 1px solid rgba(94, 122, 114, .35);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: .9rem;
  margin-bottom: .55rem;
}

.page-faq .faq-group__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-faq .faq-group h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3vw, 2rem);
  letter-spacing: -.01em;
}

.page-faq .faq-group__lead {
  max-width: 64ch;
  margin: 0 0 1.4rem;
  color: var(--txt-dim);
  line-height: 1.75;
}

.page-faq .faq-aside {
  margin: 1.5rem 0 0;
  font-size: .94rem;
  color: var(--txt-faint);
}

.page-faq .faq-aside a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border: 1px solid rgba(94, 122, 114, .45);
  border-radius: var(--radius-sm);
  background: rgba(18, 58, 51, .4);
  transition: border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-faq .qa + .qa {
  margin-top: .6rem;
}

.page-faq .qa[open] {
  border-color: rgba(53, 240, 200, .6);
  background: rgba(18, 58, 51, .72);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: .8rem;
  min-height: 44px;
  padding: .95rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: clamp(.96rem, 1.6vw, 1.06rem);
  line-height: 1.5;
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .qa[open] .qa__q::after {
  content: "\2212";
}

.page-faq .qa__no {
  flex: none;
  padding-top: .12em;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--cyan-mist);
}

.page-faq .qa__a {
  padding: .1rem 1.1rem 1.15rem;
  animation: faq-drop .26s var(--ease);
}

.page-faq .qa__a p {
  max-width: 68ch;
  margin: 0 0 .55rem;
  color: var(--txt-dim);
  font-size: .96rem;
  line-height: 1.78;
}

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

@keyframes faq-drop {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 复核时效图示 ---------- */
.page-faq .faq-timing {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: center;
  margin-top: 1.6rem;
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
  border: var(--hair-cyan);
  border-radius: var(--radius);
  background: rgba(8, 32, 29, .62);
}

.page-faq .faq-timing__title {
  margin: 0 0 1.1rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--cyan-mist);
}

.page-faq .faq-bars {
  display: grid;
  gap: .95rem;
}

.page-faq .faq-bars__row {
  display: grid;
  grid-template-columns: 3.4rem minmax(0, 1fr);
  align-items: center;
  gap: .9rem;
}

.page-faq .faq-bars__h {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-faq .faq-bars__body {
  display: grid;
  gap: .35rem;
}

.page-faq .faq-bars__track {
  display: block;
  height: 7px;
  border-radius: var(--pill);
  background: rgba(155, 245, 226, .14);
  overflow: hidden;
}

.page-faq .faq-bars__fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--cyan), var(--cyan-mist));
}

.page-faq .faq-bars__row:nth-child(1) .faq-bars__fill { width: 100%; }
.page-faq .faq-bars__row:nth-child(2) .faq-bars__fill { width: 46%; }
.page-faq .faq-bars__row:nth-child(3) .faq-bars__fill { width: 12%; }

.page-faq .faq-bars__label {
  font-size: .86rem;
  color: var(--txt-faint);
}

.page-faq .faq-timing__note {
  margin: 1.1rem 0 0;
  font-size: .86rem;
  color: var(--txt-faint);
}

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

.page-faq .faq-timing__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(94, 122, 114, .5);
}

/* ---------- 暖白纸面板 ---------- */
.page-faq .faq-panel--paper {
  padding: clamp(1.35rem, 3vw, 2.25rem);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--char);
  box-shadow: var(--shadow);
}

.page-faq .faq-panel--paper .faq-group__num {
  color: var(--ink-mid);
}

.page-faq .faq-panel--paper .faq-group__lead {
  color: var(--ink-dim);
}

.page-faq .faq-panel--paper .qa {
  background: #fff;
  border-color: rgba(94, 122, 114, .38);
}

.page-faq .faq-panel--paper .qa[open] {
  background: #fff;
  border-color: var(--ink-deep);
}

.page-faq .faq-panel--paper .qa__q {
  color: var(--char);
}

.page-faq .faq-panel--paper .qa__q::after {
  color: var(--ink-mid);
}

.page-faq .faq-panel--paper .qa__no {
  color: var(--line);
}

.page-faq .faq-panel--paper .qa__a p {
  color: var(--ink-dim);
}

.page-faq .faq-panel--paper a {
  color: var(--wine);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-outro {
  padding: clamp(1.5rem, 3.2vw, 2.5rem);
  border: var(--hair-cyan);
  border-radius: var(--radius);
  background: linear-gradient(140deg, rgba(53, 240, 200, .09), rgba(43, 42, 110, .3) 78%);
}

.page-faq .faq-outro__text {
  max-width: 64ch;
  margin: 0 0 1.4rem;
  color: var(--txt-dim);
  line-height: 1.78;
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.page-faq .faq-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  text-decoration: none;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-timing {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell__grid {
    grid-template-columns: 232px minmax(0, 1fr);
  }

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

@media (min-width: 1180px) {
  .page-faq .faq-timing {
    grid-template-columns: minmax(0, 1fr) minmax(0, 360px);
  }
}

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

  .page-faq .qa,
  .page-faq .faq-index a {
    transition: none;
  }
}