.page-faq {
  --faq-line: rgba(199, 208, 204, 0.16);
  --faq-line-strong: rgba(199, 208, 204, 0.3);
  --faq-ink-soft: #0E322C;
  --faq-pad: 20px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

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

/* ---------- 面包屑 ---------- */

.page-faq .faq-crumbs {
  background: var(--ink);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-crumbs__inner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-faq .faq-crumbs__sep {
  color: rgba(199, 208, 204, 0.38);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: 40px 0 56px;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(255, 106, 19, 0.16) 0%, rgba(255, 106, 19, 0) 58%),
    linear-gradient(180deg, #0B2B26 0%, #0E322C 62%, #0B2B26 100%);
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  align-items: end;
}

.page-faq .section__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 7vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 22ch;
}

.page-faq .faq-hero__lead {
  margin: 0 0 28px;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--silver);
}

.page-faq .faq-jump__title {
  margin: 0 0 12px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(77, 240, 208, 0.85);
}

.page-faq .faq-jump__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump__chip {
  display: inline-block;
  padding: 9px 14px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--glass);
  color: var(--paper);
  font-size: 13px;
  text-decoration: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-jump__chip:hover,
.page-faq .faq-jump__chip:focus-visible {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--charcoal);
}

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

.page-faq .faq-hero__figure::before {
  content: "";
  position: absolute;
  top: -10px;
  left: -10px;
  width: 46px;
  height: 46px;
  border-top: 2px solid var(--orange);
  border-left: 2px solid var(--orange);
  pointer-events: none;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  clip-path: polygon(0 0, 100% 0, 100% 94%, 0 100%);
  object-fit: cover;
}

.page-faq .faq-hero__caption {
  margin-top: 16px;
  font-family: var(--font-data);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: rgba(199, 208, 204, 0.68);
}

/* ---------- 主体布局 ---------- */

.page-faq .faq-board {
  padding: 8px 0 96px;
  background: var(--ink);
}

.page-faq .faq-board__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

/* ---------- 侧边索引 ---------- */

.page-faq .faq-index {
  padding: var(--faq-pad);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--ink-2);
}

.page-faq .faq-index__title {
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line);
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 2px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  color: var(--silver);
  font-size: 14px;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--glass);
  color: var(--paper);
}

.page-faq .faq-index__link[aria-current="true"] {
  background: var(--glass);
  border-left-color: var(--orange);
  color: var(--orange);
}

.page-faq .faq-index__num {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .faq-index__link[aria-current="true"] .faq-index__num {
  color: var(--orange);
}

.page-faq .faq-index__top {
  display: block;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--silver);
  text-decoration: none;
}

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

/* ---------- 问答分组 ---------- */

.page-faq .faq-columns {
  display: grid;
  gap: 56px;
}

.page-faq .faq-group {
  scroll-margin-top: 104px;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  margin-bottom: 10px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--orange);
}

.page-faq .faq-group__num {
  font-size: 30px;
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--orange);
}

.page-faq .faq-group__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 4.6vw, 27px);
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-figure {
  margin: 20px 0 8px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--faq-ink-soft);
  overflow: hidden;
}

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

/* ---------- 折叠面板 ---------- */

.page-faq .faq-list {
  display: grid;
}

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

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(77, 240, 208, 0.07) 0%, rgba(77, 240, 208, 0) 72%);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 17px 12px 17px 10px;
  list-style: none;
  cursor: pointer;
  color: var(--paper);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.6;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--orange-2);
}

.page-faq .faq-item__id {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .faq-item[open] .faq-item__id {
  color: var(--orange);
}

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

.page-faq .faq-item__mark {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--orange);
  transition: transform var(--dur) var(--ease);
}

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

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

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

.page-faq .faq-item__a {
  max-width: 66ch;
  padding: 0 12px 22px 10px;
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--silver);
}

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

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

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--paper);
}

/* ---------- 联系方式面板 ---------- */

.page-faq .faq-contact {
  margin-top: 28px;
  padding: var(--faq-pad);
  border: 1px solid var(--faq-line-strong);
  border-radius: var(--radius);
  background: var(--ink-2);
}

.page-faq .faq-contact__note {
  margin: 0 0 18px;
  max-width: 62ch;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 12px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-contact__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-contact__label {
  min-width: 76px;
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-contact__value {
  font-size: 13.5px;
  color: var(--paper);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq {
    --faq-pad: 26px;
  }

  .page-faq .faq-group__num {
    font-size: 42px;
  }

  .page-faq .faq-group__head {
    gap: 20px;
  }

  .page-faq .faq-item__q {
    padding: 18px 16px 18px 14px;
    font-size: 15.5px;
  }

  .page-faq .faq-item__a {
    padding: 0 16px 24px 14px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 64px 0 76px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
  }

  .page-faq .faq-board {
    padding: 24px 0 128px;
  }

  .page-faq .faq-board__layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: 56px;
  }

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

  .page-faq .faq-columns {
    gap: 80px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-board__layout {
    gap: 72px;
  }
}

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