.page-faq {
  --faq-line: rgba(186, 201, 206, 0.18);
  --faq-line-strong: rgba(186, 201, 206, 0.46);
  --faq-rule: rgba(10, 15, 19, 0.13);
  --faq-ink-soft: #4d666d;
  display: block;
  background: var(--ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 4vw, 40px) 0 clamp(40px, 6vw, 76px);
  background:
    radial-gradient(120% 90% at 88% 4%, rgba(240, 161, 59, 0.10), transparent 58%),
    radial-gradient(95% 85% at 6% 100%, rgba(20, 46, 54, 0.9), transparent 70%),
    var(--ink);
  color: var(--cloud);
}

.page-faq .faq-hero__crumbs {
  margin-bottom: clamp(16px, 2.2vw, 24px);
}

.page-faq .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.06em;
}

.page-faq .breadcrumbs__item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: var(--line-strong);
}

.page-faq .breadcrumbs__link {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--speed) var(--ease);
}

.page-faq .breadcrumbs__link:hover,
.page-faq .breadcrumbs__link:focus-visible {
  color: var(--gold);
}

.page-faq .breadcrumbs__current {
  color: var(--haze);
}

.page-faq .faq-hero__frame {
  position: relative;
  padding: clamp(20px, 3.6vw, 44px);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background:
    linear-gradient(160deg, rgba(20, 46, 54, 0.6), rgba(10, 15, 19, 0.32) 68%),
    var(--ink-raise);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.page-faq .faq-hero__frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  right: 22px;
  height: 9px;
  background-image: repeating-linear-gradient(90deg, var(--faq-line-strong) 0 1px, transparent 1px 26px);
  opacity: 0.75;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.16em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.7rem, 4.2vw, 2.75rem);
  line-height: 1.28;
  letter-spacing: 0.01em;
  color: var(--cloud);
}

.page-faq .faq-hero__intro {
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: var(--t-sm);
  line-height: 1.85;
  color: var(--haze);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px clamp(24px, 4vw, 44px);
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: clamp(16px, 2.4vw, 22px) 0 0;
  list-style: none;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-faq .faq-stat__value {
  font-family: var(--font-mono);
  font-size: var(--t-md);
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.page-faq .faq-stat__label {
  font-size: var(--t-xs);
  color: var(--mist);
  letter-spacing: 0.04em;
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--dai);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.06);
}

.page-faq .faq-hero__figure figcaption {
  padding: 11px 16px;
  font-size: var(--t-xs);
  line-height: 1.6;
  color: var(--haze);
  background: rgba(10, 15, 19, 0.72);
  border-top: 1px solid var(--faq-line);
}

/* ---------- 帮助台主体 ---------- */
.page-faq .faq-desk {
  padding: clamp(36px, 6vw, 80px) 0 clamp(48px, 7vw, 96px);
  background:
    linear-gradient(180deg, rgba(216, 213, 204, 0.5) 0, transparent 120px),
    var(--cloud);
  color: var(--ink);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 40px);
}

/* 左侧索引 */
.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--faq-ink-soft);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: flex;
  flex: none;
  align-items: baseline;
  gap: 9px;
  padding: 9px 15px;
  border: 1px solid var(--faq-rule);
  border-radius: var(--r-pill);
  font-size: 0.9375rem;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--speed) var(--ease), background var(--speed) var(--ease), color var(--speed) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--gold);
  background: rgba(240, 161, 59, 0.1);
  color: var(--amber);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-faq .faq-index__figure {
  margin: 20px 0 0;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--dai);
}

.page-faq .faq-index__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8);
}

/* 右侧问答 */
.page-faq .faq-group {
  padding-top: clamp(26px, 3.4vw, 38px);
  margin-top: clamp(26px, 3.4vw, 38px);
  border-top: 1px solid var(--faq-rule);
  scroll-margin-top: 92px;
}

.page-faq .faq-group:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.6vw, 1.75rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--gold);
  flex: none;
}

.page-faq .faq-group__note {
  margin: 8px 0 6px;
  padding-left: 2px;
  font-size: var(--t-xs);
  line-height: 1.7;
  color: var(--faq-ink-soft);
  letter-spacing: 0.02em;
}

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

.page-faq .faq-item__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-sans);
  font-size: var(--t-sm);
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink);
  transition: color var(--speed) var(--ease);
}

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

.page-faq .faq-item__summary:hover {
  color: var(--amber);
}

.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.page-faq .faq-item__icon {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--amber);
  transition: transform var(--speed) var(--ease), background var(--speed) var(--ease);
}

.page-faq .faq-item__icon::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__icon::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: scaleY(0);
}

.page-faq .faq-item[open] .faq-item__icon::before {
  background: var(--gold);
}

.page-faq .faq-item__body {
  padding: 0 0 20px;
  animation: faq-reveal 0.22s var(--ease);
}

.page-faq .faq-item__body p {
  margin: 0;
  max-width: 62ch;
  font-size: var(--t-sm);
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-item__body a {
  color: var(--amber);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq .faq-item__body a:hover,
.page-faq .faq-item__body a:focus-visible {
  color: var(--ink);
  text-decoration-color: var(--gold);
}

.page-faq .faq-key {
  font-weight: 600;
  color: var(--ink);
  background-image: linear-gradient(var(--gold), var(--gold));
  background-repeat: no-repeat;
  background-size: 100% 2px;
  background-position: 0 100%;
  padding-bottom: 1px;
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 联系面板 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(34px, 4.4vw, 52px);
  scroll-margin-top: 92px;
}

.page-faq .faq-contact__panel {
  position: relative;
  padding: clamp(24px, 3.6vw, 44px);
  border-radius: var(--r-md);
  color: var(--cloud);
  overflow: hidden;
  background:
    repeating-linear-gradient(115deg, rgba(186, 201, 206, 0.06) 0 1px, transparent 1px 16px),
    radial-gradient(105% 130% at 92% 0%, rgba(240, 161, 59, 0.18), transparent 62%),
    var(--dai);
}

.page-faq .faq-contact__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .faq-contact__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 2.6vw, 1.6rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--cloud);
}

.page-faq .faq-contact__lead {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: var(--t-sm);
  line-height: 1.8;
  color: var(--haze);
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 1px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-sm);
  overflow: hidden;
  background: var(--faq-line);
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 13px 16px;
  background: rgba(10, 15, 19, 0.62);
}

.page-faq .faq-contact__key {
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-faq .faq-contact__value {
  margin: 0;
  font-size: var(--t-sm);
  line-height: 1.6;
  color: var(--cloud);
  overflow-wrap: break-word;
  word-break: break-word;
}

.page-faq .faq-contact__hint {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: var(--t-xs);
  line-height: 1.8;
  color: var(--haze);
}

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

.page-faq .faq-contact .btn--ghost {
  border-color: var(--faq-line-strong);
  color: var(--cloud);
  background: rgba(243, 240, 232, 0.06);
  text-decoration: none;
}

.page-faq .faq-contact .btn--ghost:hover,
.page-faq .faq-contact .btn--ghost:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-contact__row {
    grid-template-columns: 122px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(28px, 4vw, 56px);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(190px, 3fr) minmax(0, 8fr);
    column-gap: clamp(30px, 5vw, 76px);
  }

  .page-faq .faq-index__inner {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-index__list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-index__link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    padding: 11px 10px 11px 12px;
    font-size: 0.9375rem;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--gold);
    background: rgba(10, 15, 19, 0.05);
  }

  .page-faq .faq-index__figure {
    aspect-ratio: 1 / 1;
    margin-top: 26px;
  }
}

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

  .page-faq .faq-index__link,
  .page-faq .faq-item__summary,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after {
    transition: none;
  }
}