/* ===== 常见问答 · 页面专属样式 ===== */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(24px, 4vw, 48px) clamp(38px, 6vw, 76px);
  background:
    radial-gradient(120% 85% at 92% 0%, rgba(57, 255, 136, 0.13), transparent 58%),
    radial-gradient(90% 70% at -8% 100%, rgba(255, 169, 40, 0.10), transparent 62%),
    var(--bs-deep);
  border-bottom: 1px solid var(--bs-line-soft);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    to right,
    rgba(27, 58, 92, 0.28) 0 1px,
    transparent 1px 96px
  );
  pointer-events: none;
  opacity: 0.5;
}

.page-faq .faq-hero > .bs-shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  align-items: center;
  margin-top: clamp(18px, 3vw, 32px);
}

.page-faq .faq-hero h1 {
  font-family: var(--bs-font-display);
  font-weight: 800;
  letter-spacing: 0.02em;
  font-size: clamp(1.85rem, 5.4vw, 3.4rem);
  line-height: 1.1;
  margin: 0.55rem 0 0;
  color: var(--bs-ink);
}

.page-faq .faq-hero .bs-lede {
  margin-top: 1rem;
  max-width: 60ch;
  color: var(--bs-muted);
  line-height: 1.8;
}

.page-faq .faq-hero__fig {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--bs-line);
  border-radius: var(--bs-radius);
  background: linear-gradient(160deg, var(--bs-panel), var(--bs-deep));
  box-shadow: 0 34px 70px -34px rgba(0, 0, 0, 0.92);
  position: relative;
}

.page-faq .faq-hero__fig::after {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: calc(var(--bs-radius) - 6px);
  background: linear-gradient(180deg, transparent 52%, rgba(5, 10, 20, 0.78));
  pointer-events: none;
}

.page-faq .faq-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: calc(var(--bs-radius) - 6px);
}

/* 顶部数据条 */
.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--bs-line-soft);
  border: 1px solid var(--bs-line);
  border-radius: var(--bs-radius-sm);
  overflow: hidden;
}

.page-faq .faq-stats__item {
  background: rgba(10, 22, 38, 0.88);
  padding: 14px clamp(10px, 2vw, 20px);
}

.page-faq .faq-stats__label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--bs-muted);
  margin: 0;
}

.page-faq .faq-stats__value {
  margin: 6px 0 0;
  font-family: var(--bs-font-mono);
  font-size: clamp(1.05rem, 2.6vw, 1.6rem);
  font-weight: 700;
  color: var(--bs-green);
  line-height: 1.2;
}

/* 主体双栏 */
.page-faq .faq-main {
  padding-block: clamp(38px, 6vw, 76px) clamp(52px, 8vw, 104px);
}

.page-faq .faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 48px);
}

.page-faq .faq-nav {
  border: 1px solid var(--bs-line);
  border-radius: var(--bs-radius);
  background: linear-gradient(180deg, rgba(16, 35, 58, 0.72), rgba(10, 22, 38, 0.92));
  padding: 16px;
}

.page-faq .faq-nav__title {
  margin: 0 0 12px;
  font-family: var(--bs-font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--bs-amber);
}

.page-faq .faq-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--bs-radius-sm);
  border-left: 2px solid transparent;
  color: var(--bs-ink);
  font-size: 14px;
  text-decoration: none;
  transition: background 0.22s var(--bs-ease), border-color 0.22s var(--bs-ease),
    color 0.22s var(--bs-ease);
}

.page-faq .faq-nav__link:hover,
.page-faq .faq-nav__link:focus-visible {
  background: rgba(57, 255, 136, 0.09);
  border-left-color: var(--bs-green);
  color: var(--bs-green-soft);
}

.page-faq .faq-nav__count {
  font-family: var(--bs-font-mono);
  font-size: 12px;
  color: var(--bs-muted);
}

.page-faq .faq-nav__links {
  display: grid;
  gap: 9px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--bs-line-soft);
}

.page-faq .faq-nav__links a {
  color: var(--bs-muted);
  font-size: 13px;
  text-decoration: none;
  border-bottom: 1px dashed rgba(27, 58, 92, 0.85);
  padding-bottom: 4px;
  justify-self: start;
  transition: color 0.2s var(--bs-ease), border-color 0.2s var(--bs-ease);
}

.page-faq .faq-nav__links a:hover,
.page-faq .faq-nav__links a:focus-visible {
  color: var(--bs-green);
  border-bottom-color: var(--bs-green);
}

/* 分组 */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--bs-header-h) + 26px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(40px, 6vw, 68px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  align-items: baseline;
  padding-bottom: 14px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--bs-line);
}

.page-faq .faq-group__no {
  font-family: var(--bs-font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--bs-amber);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--bs-font-display);
  font-weight: 800;
  letter-spacing: 0.02em;
  font-size: clamp(1.3rem, 3.2vw, 1.85rem);
  color: var(--bs-ink);
}

.page-faq .faq-group__sub {
  grid-column: 2;
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--bs-muted);
}

/* 手风琴 */
.page-faq .faq-item {
  margin-bottom: 10px;
  border: 1px solid var(--bs-line);
  border-radius: var(--bs-radius-sm);
  background: linear-gradient(150deg, rgba(16, 35, 58, 0.55), rgba(10, 22, 38, 0.88));
  transition: border-color 0.25s var(--bs-ease), box-shadow 0.25s var(--bs-ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(57, 255, 136, 0.34);
}

.page-faq .faq-item[open] {
  border-color: rgba(57, 255, 136, 0.55);
  box-shadow: 0 18px 40px -30px rgba(57, 255, 136, 0.45);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px clamp(14px, 2.4vw, 22px);
  cursor: pointer;
  list-style: none;
  font-size: clamp(0.97rem, 2.1vw, 1.06rem);
  font-weight: 600;
  line-height: 1.6;
  color: var(--bs-ink);
}

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

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--bs-green);
  outline-offset: -2px;
  border-radius: var(--bs-radius-sm);
}

.page-faq .faq-item__sign {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  display: grid;
  place-items: center;
  border: 1px solid var(--bs-line);
  border-radius: 6px;
  background: rgba(5, 10, 20, 0.72);
  font-family: var(--bs-font-mono);
  font-size: 14px;
  line-height: 1;
  color: var(--bs-green);
  transition: transform 0.26s var(--bs-ease), border-color 0.26s var(--bs-ease),
    background 0.26s var(--bs-ease);
}

.page-faq .faq-item[open] .faq-item__sign {
  transform: rotate(45deg);
  border-color: var(--bs-green);
  background: rgba(57, 255, 136, 0.12);
}

.page-faq .faq-item__a {
  margin: 0 clamp(14px, 2.4vw, 22px);
  padding: 14px 0 18px;
  border-top: 1px dashed var(--bs-line-soft);
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--bs-muted);
}

.page-faq .faq-item__a a {
  color: var(--bs-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 136, 0.4);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--bs-green-soft);
  border-bottom-color: var(--bs-green-soft);
}

/* 费用对照表 */
.page-faq .faq-table-wrap {
  overflow-x: auto;
  margin: 0 0 22px;
  border: 1px solid var(--bs-line);
  border-radius: var(--bs-radius-sm);
  background: rgba(10, 22, 38, 0.72);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
}

.page-faq .faq-table caption {
  padding: 14px 16px 12px;
  text-align: left;
  font-family: var(--bs-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: var(--bs-muted);
  border-bottom: 1px solid var(--bs-line-soft);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 12px 16px;
  text-align: left;
  font-size: 14px;
  line-height: 1.6;
  border-bottom: 1px solid var(--bs-line-soft);
}

.page-faq .faq-table thead th {
  font-family: var(--bs-font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--bs-amber);
  background: rgba(42, 26, 0, 0.42);
  white-space: nowrap;
}

.page-faq .faq-table tbody tr {
  transition: background 0.2s var(--bs-ease);
}

.page-faq .faq-table tbody tr:hover {
  background: rgba(57, 255, 136, 0.07);
}

.page-faq .faq-table tbody tr:hover td:first-child {
  box-shadow: inset 3px 0 0 var(--bs-green);
}

.page-faq .faq-table tbody td {
  color: var(--bs-muted);
}

.page-faq .faq-table tbody td:first-child {
  color: var(--bs-ink);
  font-weight: 600;
}

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

/* 平板端示意图 */
.page-faq .faq-figure {
  margin: 22px 0 0;
  border: 1px solid var(--bs-line);
  border-radius: var(--bs-radius-sm);
  overflow: hidden;
  background: rgba(10, 22, 38, 0.72);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-faq .faq-figure__cap {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--bs-muted);
  border-top: 1px solid var(--bs-line-soft);
}

/* 联系支持面板 */
.page-faq .faq-contact {
  margin-top: 22px;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid rgba(255, 169, 40, 0.32);
  border-radius: var(--bs-radius);
  background: linear-gradient(150deg, rgba(42, 26, 0, 0.6), rgba(10, 22, 38, 0.92));
}

.page-faq .faq-contact__lead {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--bs-ink);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--bs-line-soft);
  border: 1px solid var(--bs-line);
  border-radius: var(--bs-radius-sm);
  overflow: hidden;
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 12px 16px;
  background: rgba(5, 10, 20, 0.62);
}

.page-faq .faq-contact__label {
  font-family: var(--bs-font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--bs-amber);
}

.page-faq .faq-contact__value {
  font-family: var(--bs-font-mono);
  font-size: 15px;
  color: var(--bs-green);
  text-decoration: none;
  word-break: break-all;
}

.page-faq .faq-contact__value--plain {
  color: var(--bs-ink);
  font-family: var(--bs-font-body);
  font-size: 14px;
}

.page-faq a.faq-contact__value:hover,
.page-faq a.faq-contact__value:focus-visible {
  color: var(--bs-green-soft);
  text-decoration: underline;
}

.page-faq .faq-contact__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--bs-muted);
}

.page-faq .faq-contact__note a {
  color: var(--bs-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 136, 0.4);
}

/* ===== 响应式 ===== */

@media (max-width: 959px) {
  .page-faq .faq-nav__list {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 6px;
  }

  .page-faq .faq-nav__list li {
    flex: 0 0 auto;
  }

  .page-faq .faq-nav__link {
    border: 1px solid var(--bs-line);
    border-left-width: 1px;
    white-space: nowrap;
  }
}

@media (min-width: 640px) {
  .page-faq .faq-item__a p {
    padding-left: 36px;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: center;
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(32px, 5vw, 68px);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-grid {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
    gap: clamp(36px, 4vw, 60px);
  }

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

@media (max-width: 460px) {
  .page-faq .faq-stats {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__sign,
  .page-faq .faq-item,
  .page-faq .faq-nav__link,
  .page-faq .faq-table tbody tr {
    transition: none;
  }

  .page-faq .faq-item[open] .faq-item__sign {
    transform: none;
  }
}