.page-faq {
  --faq-hair: rgba(143, 180, 190, 0.16);
  --faq-hair-strong: rgba(143, 180, 190, 0.3);
  --faq-radius: 3px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(1rem, 3vw, 1.8rem) 0 clamp(1.8rem, 4.5vw, 3rem);
}

.page-faq .breadcrumb ol {
  margin: 0 0 clamp(1.1rem, 3vw, 1.8rem);
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.8rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--cal);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.7rem;
  color: var(--line);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 4vw, 2.6rem);
}

.page-faq .faq-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.page-faq .faq-hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.85rem, 6.2vw, 3.1rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--white);
  max-width: 20ch;
}

.page-faq .faq-lede {
  margin: 0 0 1.4rem;
  max-width: 48ch;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--body-text);
}

.page-faq .faq-hero-jump {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-faq .faq-hero-jump a {
  display: inline-block;
  padding: 0.42rem 0.8rem;
  border: 1px solid var(--faq-hair);
  border-radius: var(--faq-radius);
  background: var(--glass);
  color: var(--cal);
  font-family: var(--font-body);
  font-size: 0.82rem;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-hero-jump a:hover,
.page-faq .faq-hero-jump a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-hero-figure {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border: 1px solid var(--faq-hair);
  border-radius: var(--faq-radius);
  background: var(--panel);
}

.page-faq .faq-hero-figure figcaption {
  margin-top: 0.65rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--dim);
}

/* ---------- 检索条 ---------- */

.page-faq .faq-search-band {
  padding-bottom: clamp(1.4rem, 3.5vw, 2.2rem);
}

.page-faq .faq-filter {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--faq-hair);
  border-left: 2px solid var(--cyan);
  border-radius: var(--faq-radius);
  background: var(--glass);
}

.page-faq .faq-filter-icon {
  flex: none;
  width: 14px;
  height: 14px;
  border: 1.5px solid var(--cyan);
  border-radius: 50%;
  position: relative;
}

.page-faq .faq-filter-icon::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -4px;
  width: 7px;
  height: 1.5px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-faq .faq-filter-label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-faq .faq-filter-input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0.3rem 0;
  border: 0;
  background: none;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
}

.page-faq .faq-filter-input::placeholder {
  color: var(--dim);
}

.page-faq .faq-filter-input:focus-visible {
  box-shadow: 0 1px 0 0 var(--cyan);
}

.page-faq .faq-filter-hint {
  margin: 0.7rem 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--dim);
}

/* ---------- 主体两栏 ---------- */

.page-faq .faq-body {
  padding-bottom: clamp(2.4rem, 6vw, 4.4rem);
}

.page-faq .faq-body-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 4vw, 2.4rem);
}

.page-faq .faq-index-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
}

.page-faq .faq-index-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-bottom: 0.4rem;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--faq-hair);
  border-radius: var(--faq-radius);
  color: var(--cal);
  font-family: var(--font-body);
  font-size: 0.85rem;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

/* ---------- 分组 ---------- */

.page-faq .faq-groups {
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 6vw, 3.4rem);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.3rem 0.85rem;
  align-items: baseline;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--faq-hair-strong);
  margin-bottom: 0.6rem;
}

.page-faq .faq-group-num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.25rem, 3.6vw, 1.6rem);
  line-height: 1.25;
  color: var(--white);
}

.page-faq .faq-group-note {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--cal);
}

/* ---------- 手风琴 ---------- */

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-hair);
  transition: background-color var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  background: rgba(20, 48, 63, 0.35);
}

.page-faq .faq-q-head {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .faq-q {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem 0.9rem 1.05rem 1rem;
  border: 0;
  border-left: 2px solid transparent;
  background: none;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-faq .faq-q:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: -2px;
}

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

.page-faq .faq-q-mark {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 0.35rem;
}

.page-faq .faq-q-mark::before,
.page-faq .faq-q-mark::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .faq-q-mark::before {
  top: 7px;
  left: 0;
  width: 16px;
  height: 2px;
}

.page-faq .faq-q-mark::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .faq-q[aria-expanded="true"] .faq-q-mark::after {
  transform: scaleY(0);
  opacity: 0;
}

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

.page-faq .faq-a-inner {
  padding: 0 1.2rem 1.25rem 1.15rem;
  border-left: 2px solid var(--cyan);
}

.page-faq .faq-a:not([hidden]) .faq-a-inner {
  animation: faq-panel-in 240ms var(--ease) both;
}

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

.page-faq .faq-a-inner p {
  margin: 0 0 0.8rem;
  max-width: 62ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--body-text);
}

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

.page-faq .faq-a-inner ul {
  margin: 0 0 0.8rem;
  padding: 0;
  list-style: none;
  max-width: 62ch;
}

.page-faq .faq-a-inner li {
  position: relative;
  padding-left: 1.1rem;
  margin-bottom: 0.45rem;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--body-text);
}

.page-faq .faq-a-inner li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--orange);
}

.page-faq .faq-a-inner strong {
  color: var(--white);
  font-weight: 600;
}

/* ---------- 明细章节的图与表 ---------- */

.page-faq .faq-media {
  margin: 0 0 clamp(1.2rem, 3.5vw, 1.8rem);
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid var(--faq-hair);
  border-radius: var(--faq-radius);
  background: var(--panel);
}

.page-faq .faq-media-note {
  margin: 0.6rem 0 0;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--dim);
}

.page-faq .faq-spec {
  margin: 0 0 clamp(1.4rem, 4vw, 2rem);
  overflow-x: auto;
  border: 1px solid var(--faq-hair);
  border-radius: var(--faq-radius);
  background: var(--panel);
}

.page-faq .faq-spec-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.page-faq .faq-spec-table caption {
  text-align: left;
  padding: 0.85rem 1rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
}

.page-faq .faq-spec-table th,
.page-faq .faq-spec-table td {
  padding: 0.7rem 1rem;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-spec-table thead th {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--cal);
  border-top: 0;
}

.page-faq .faq-spec-table tbody th {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--cyan);
  white-space: nowrap;
}

.page-faq .faq-spec-table td {
  color: var(--body-text);
}

.page-faq .faq-spec-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--cal);
}

.page-faq .faq-spec-table tbody tr:hover {
  background: rgba(53, 224, 214, 0.06);
}

/* ---------- 继续查阅 ---------- */

.page-faq .faq-next-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}

.page-faq .faq-next-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.1rem 1.15rem 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-next-card:hover,
.page-faq .faq-next-card:focus-visible {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-next-card .tag {
  align-self: flex-start;
}

.page-faq .faq-next-card h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--white);
}

.page-faq .faq-next-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--cal);
}

/* ---------- 响应式 ---------- */

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

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: end;
  }

  .page-faq .faq-hero-figure {
    padding-bottom: 0.4rem;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body-grid {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.4rem);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--faq-hair);
  }

  .page-faq .faq-index-link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 0.6rem 0.9rem;
    margin-left: -1px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q-mark::before,
  .page-faq .faq-q-mark::after,
  .page-faq .faq-item,
  .page-faq .faq-q,
  .page-faq .faq-next-card,
  .page-faq .faq-hero-jump a,
  .page-faq .faq-index-link {
    transition: none;
  }

  .page-faq .faq-a:not([hidden]) .faq-a-inner {
    animation: none;
  }

  .page-faq .faq-next-card:hover,
  .page-faq .faq-next-card:focus-visible {
    transform: none;
  }
}