.page-faq {
  --faq-answer-indent: 60px;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 40px 0 44px;
  border-bottom: var(--bd) solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -160px;
  right: -140px;
  width: 620px;
  height: 620px;
  background: radial-gradient(circle at 55% 45%, rgba(47, 243, 208, 0.18), transparent 62%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 6px;
  background: linear-gradient(90deg, var(--cyan), var(--cyan-deep) 45%, var(--flare));
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(2rem, 7vw, 3.75rem);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__facts li {
  display: grid;
  gap: 2px;
  padding: 10px 14px;
  border: var(--bd) solid var(--line);
  background: var(--panel);
}

.page-faq .faq-hero__fact-num {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__fact-label {
  font-size: 0.74rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: var(--bd) solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 吸顶分组索引 ---------- */
.page-faq .faq-index {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--ink-deep);
  border-bottom: var(--bd) solid var(--line);
}

.page-faq .faq-index__inner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 10px;
  padding-bottom: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-index__inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  padding-right: 6px;
}

.page-faq .faq-index__link {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 7px 11px;
  transition: color var(--t-fast), background-color var(--t-fast), border-color var(--t-fast);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible,
.page-faq .faq-index__link[aria-current="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 搜索 ---------- */
.page-faq .faq-flow {
  padding-bottom: 20px;
}

.page-faq .faq-search {
  display: grid;
  gap: 8px;
  margin: 30px 0 8px;
  padding: 18px 20px;
  border: var(--bd) solid var(--line);
  background: var(--panel);
}

.page-faq .faq-search__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-search__input {
  width: 100%;
  box-sizing: border-box;
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--paper);
  background: var(--ink);
  border: var(--bd) solid var(--line);
  border-radius: 0;
  appearance: none;
}

.page-faq .faq-search__input::placeholder {
  color: var(--muted);
}

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

.page-faq .faq-search__hint {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: 40px 0 12px;
  border-top: var(--bd) solid var(--line);
  margin-top: 26px;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-faq .faq-group__title {
  margin: 0;
  padding-left: 14px;
  border-left: 4px solid var(--cyan);
  font-size: clamp(1.35rem, 4.2vw, 2rem);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-group__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

.page-faq .faq-group__figure {
  margin: 0;
  border: var(--bd) solid var(--line);
  background: var(--panel);
}

.page-faq .faq-group__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-group__figcap {
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 手风琴问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 14px;
}

.page-faq .faq-item {
  border: var(--bd) solid var(--line);
  background: var(--panel);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.page-faq .faq-item:hover {
  border-color: var(--cyan-deep);
}

.page-faq .faq-item[open] {
  border-color: var(--cyan);
  box-shadow: var(--shadow);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: start;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q::marker {
  content: "";
}

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

.page-faq .faq-q__num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--cyan);
  letter-spacing: 0.06em;
  padding-top: 2px;
}

.page-faq .faq-q__body {
  display: grid;
  gap: 5px;
}

.page-faq .faq-q__text {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .faq-q__sum {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.5;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-faq .faq-q__mark {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  flex: none;
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
}

.page-faq .faq-q__mark::before {
  left: 0;
  right: 0;
  top: 8px;
  height: 2px;
}

.page-faq .faq-q__mark::after {
  top: 0;
  bottom: 0;
  left: 8px;
  width: 2px;
  transition: transform var(--t-fast);
}

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

.page-faq .faq-a {
  padding: 0 16px 18px var(--faq-answer-indent);
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-a p {
  margin: 0 0 0.85em;
}

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

.page-faq .faq-a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

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

/* ---------- 注释带 ---------- */
.page-faq .faq-note {
  display: grid;
  gap: 8px;
  margin: 30px 0 0;
  padding: 18px 20px;
  background: var(--ink-deep);
  border: var(--bd) solid var(--line);
  border-left: 6px solid var(--flare);
}

.page-faq .faq-note__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--amber);
}

.page-faq .faq-note p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--paper);
}

/* ---------- 指标表 ---------- */
.page-faq .faq-table-wrap {
  border: var(--bd) solid var(--line);
  background: var(--panel);
  overflow-x: auto;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.page-faq .faq-table__cap {
  caption-side: top;
  text-align: left;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--cyan);
  background: var(--ink-deep);
  border-bottom: var(--bd) solid var(--line);
}

.page-faq .faq-table th {
  text-align: left;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--cyan);
  background: rgba(47, 243, 208, 0.06);
  border-bottom: var(--bd) solid var(--line);
}

.page-faq .faq-table td {
  padding: 12px 16px;
  vertical-align: top;
  line-height: 1.68;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-table td:first-child {
  color: var(--paper);
  font-weight: 600;
  white-space: nowrap;
}

.page-faq .faq-table tbody tr:hover td {
  background: rgba(47, 243, 208, 0.04);
}

/* ---------- 尾部行动区 ---------- */
.page-faq .faq-cta {
  margin-top: 46px;
  padding: 40px 0 52px;
  background: var(--panel);
  border-top: var(--bd) solid var(--line);
  border-bottom: var(--bd) solid var(--flare);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 24px;
  align-items: center;
}

.page-faq .faq-cta__title {
  margin: 12px 0 0;
  font-size: clamp(1.4rem, 4vw, 2.1rem);
  line-height: 1.2;
  font-weight: 800;
}

.page-faq .faq-cta__lead {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--muted);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 56px 0 52px;
  }

  .page-faq .faq-q {
    padding: 18px 20px;
  }

  .page-faq .faq-a {
    padding-right: 20px;
  }

  .page-faq .faq-note {
    padding: 20px 26px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 44px;
  }

  .page-faq .faq-group__body {
    grid-template-columns: 7fr 5fr;
    gap: 32px;
  }

  .page-faq .faq-group__body--single {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: 1fr auto;
    gap: 44px;
  }
}

@media (max-width: 520px) {
  .page-faq {
    --faq-answer-indent: 16px;
  }

  .page-faq .faq-q {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "num body"
      "mark mark";
    row-gap: 10px;
  }

  .page-faq .faq-q__num {
    grid-area: num;
  }

  .page-faq .faq-q__body {
    grid-area: body;
  }

  .page-faq .faq-q__mark {
    grid-area: mark;
    margin-top: 0;
  }

  .page-faq .faq-index__label {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-index__link,
  .page-faq .faq-q__mark::after {
    transition: none;
  }
}