.page-faq {
  --faq-gap: 14px;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--font-body);
  padding-bottom: 8px;
}

.page-faq .breadcrumbs {
  padding: 22px 0 4px;
  font-size: 13px;
}

.page-faq .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--mist);
}

.page-faq .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-faq .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
}

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

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  margin-top: 12px;
  padding: 44px 0 56px;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(1200px 460px at 18% -10%, rgba(232, 178, 60, 0.14), transparent 62%),
    radial-gradient(900px 420px at 96% 104%, rgba(53, 223, 210, 0.12), transparent 66%),
    var(--night);
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-faq .faq-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
}

.page-faq .faq-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(6, 10, 24, 0.96) 0%, rgba(6, 10, 24, 0.78) 46%, rgba(6, 10, 24, 0.42) 100%);
}

.page-faq .faq-hero__slash {
  position: absolute;
  z-index: 0;
  top: -20%;
  left: 28%;
  width: 2px;
  height: 150%;
  background: linear-gradient(to bottom, transparent, rgba(232, 178, 60, 0.55) 42%, rgba(53, 223, 210, 0.42) 68%, transparent);
  transform: rotate(19deg);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 34px;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 14px;
  color: var(--gold);
}

.page-faq .faq-hero__lead h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.75rem, 4.6vw, 2.9rem);
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--cream);
  max-width: 20ch;
}

.page-faq .faq-hero__intro {
  margin: 0 0 26px;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 五宫格索引 */

.page-faq .faq-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-index__card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  min-height: 104px;
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--glass);
  color: var(--cream);
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.36s var(--ease), border-color 0.36s var(--ease), background 0.36s var(--ease);
}

.page-faq .faq-index__card::after {
  content: "";
  position: absolute;
  inset: auto -30% -60% auto;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 223, 210, 0.22), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  pointer-events: none;
}

.page-faq .faq-index__card:first-child {
  grid-column: 1 / -1;
  min-height: 132px;
  background: linear-gradient(152deg, rgba(232, 178, 60, 0.2), rgba(53, 223, 210, 0.09) 72%);
  border-color: rgba(232, 178, 60, 0.52);
}

.page-faq .faq-index__card:hover,
.page-faq .faq-index__card:focus-visible {
  transform: translateY(-3px) scale(1.022);
  border-color: var(--gold);
  background: var(--glass-2);
}

.page-faq .faq-index__card:first-child:hover,
.page-faq .faq-index__card:first-child:focus-visible {
  background: linear-gradient(152deg, rgba(232, 178, 60, 0.3), rgba(53, 223, 210, 0.16) 72%);
}

.page-faq .faq-index__card:hover::after,
.page-faq .faq-index__card:focus-visible::after {
  opacity: 1;
}

.page-faq .faq-coord {
  color: var(--ember);
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-index__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  line-height: 1.4;
  letter-spacing: -0.005em;
}

.page-faq .faq-index__meta {
  font-size: 12.5px;
  color: var(--mist);
  letter-spacing: 0.02em;
}

.page-faq .faq-index__meta .data {
  color: var(--cyan);
  font-weight: 600;
}

.page-faq .faq-index__hint {
  font-size: 12.5px;
  color: var(--gold);
  letter-spacing: 0.04em;
}

/* ---------- 分组 ---------- */

.page-faq .faq-group {
  padding: 54px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-group--night {
  background: linear-gradient(180deg, rgba(14, 23, 48, 0.72), rgba(6, 10, 24, 0));
}

.page-faq .faq-group__inner {
  display: grid;
  gap: 30px;
}

.page-faq .faq-group__side {
  align-self: start;
  padding: 18px 18px 20px;
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: var(--glass);
}

.page-faq .faq-group__title {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-faq .faq-group__lead {
  margin: 0 0 18px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .faq-toc {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-toc li + li {
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-toc a {
  display: block;
  padding: 10px 0;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.28s var(--ease), padding-left 0.28s var(--ease);
}

.page-faq .faq-toc a::before {
  content: "·";
  margin-right: 8px;
  color: var(--ember);
  font-weight: 700;
}

.page-faq .faq-toc a:hover,
.page-faq .faq-toc a:focus-visible {
  color: var(--cyan);
  padding-left: 5px;
}

/* 答案卡 */

.page-faq .faq-group__body {
  min-width: 0;
}

.page-faq .faq-item {
  margin-bottom: var(--faq-gap);
  border: 1px solid rgba(34, 22, 9, 0.16);
  border-radius: var(--r-md);
  background: var(--cream);
  color: var(--brown);
  overflow: hidden;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
  transition: background 0.28s var(--ease);
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary:hover {
  background: rgba(232, 178, 60, 0.14);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--brown);
}

.page-faq .faq-item > summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-data);
  font-size: 1.3rem;
  line-height: 1.1;
  color: var(--brown);
  transition: transform 0.32s var(--ease), color 0.32s var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
  color: var(--ember);
}

.page-faq .faq-flag {
  flex: 0 0 auto;
  align-self: center;
  padding: 2px 7px;
  border-radius: var(--r-sm);
  background: var(--ember);
  color: var(--cream);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.7;
}

.page-faq .faq-item__body {
  padding: 0 18px 18px;
}

.page-faq .faq-item[open] .faq-item__body {
  animation: faqReveal 0.34s var(--ease) both;
}

.page-faq .faq-item__body p {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(34, 22, 9, 0.22);
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(34, 22, 9, 0.84);
}

.page-faq .faq-item__body a {
  color: #8a3a17;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__body a:hover {
  color: var(--ember);
}

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

/* 配图 */

.page-faq .faq-figure {
  margin: 0 0 20px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: linear-gradient(140deg, var(--night), var(--ink));
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
  letter-spacing: 0.02em;
}

/* ---------- 底部延伸 ---------- */

.page-faq .faq-next {
  padding: 54px 0 72px;
}

.page-faq .faq-next .section-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-next__list {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-next__list a {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--glass);
  text-decoration: none;
  transition: transform 0.32s var(--ease), border-color 0.32s var(--ease), background 0.32s var(--ease);
}

.page-faq .faq-next__list a:hover,
.page-faq .faq-next__list a:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: var(--glass-2);
}

.page-faq .faq-next__k {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--gold);
}

.page-faq .faq-next__v {
  font-size: 13px;
  line-height: 1.66;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    grid-auto-rows: minmax(104px, auto);
  }

  .page-faq .faq-index__card:first-child {
    grid-column: span 2;
    grid-row: span 2;
  }

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

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding: 62px 0 76px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
    align-items: center;
  }

  .page-faq .faq-group {
    padding: 72px 0;
  }

  .page-faq .faq-group__inner {
    grid-template-columns: 292px minmax(0, 1fr);
    gap: 52px;
  }

  .page-faq .faq-group__side {
    position: sticky;
    top: calc(var(--top-h) + 28px);
  }

  .page-faq .faq-next__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__card,
  .page-faq .faq-toc a,
  .page-faq .faq-next__list a {
    transition: none;
  }

  .page-faq .faq-index__card:hover,
  .page-faq .faq-index__card:focus-visible,
  .page-faq .faq-next__list a:hover,
  .page-faq .faq-next__list a:focus-visible {
    transform: none;
  }

  .page-faq .faq-item[open] .faq-item__body {
    animation: none;
  }
}