.page-faq {
  --faq-num: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  background: var(--ink);
  color: var(--white);
}

.page-faq .crumb-sep {
  margin: 0 8px;
  color: var(--cyan-dim);
  font-family: var(--font-num);
}

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

/* ── 首屏 ───────────────────────────────────────── */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 60px) 0 clamp(26px, 4vw, 48px);
  border-bottom: 1px solid var(--line-mid);
  background:
    radial-gradient(90% 120% at 88% -10%, rgba(59, 240, 196, 0.12), transparent 62%),
    linear-gradient(180deg, #0E2119 0%, var(--ink) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, rgba(59, 240, 196, 0.045) 0 1px, transparent 1px 96px);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 3.5vw, 44px);
  align-items: end;
}

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

.page-faq .faq-hero .vlabel {
  display: inline-block;
  margin-top: 14px;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 16px;
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 48ch;
  color: var(--mist);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line-mid);
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-hero__mail {
  color: var(--cyan);
  letter-spacing: 0.02em;
  word-break: break-all;
}

.page-faq .faq-hero__media {
  margin: 0;
  width: 100%;
}

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

/* ── 分类吸顶导航 ───────────────────────────────── */

.page-faq .faq-index {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 26, 21, 0.94);
  border-bottom: 1px solid var(--line-mid);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.page-faq .faq-index__inner {
  display: flex;
  gap: 8px;
  padding: 12px 0;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-index .toc-link {
  flex: 0 0 auto;
  padding: 8px 14px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  font-size: 13px;
  line-height: 1;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .faq-index .toc-link:hover {
  color: var(--cyan);
  border-color: var(--line-cyan);
}

.page-faq .faq-index .toc-link[aria-current="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

/* ── 章节 ───────────────────────────────────────── */

.page-faq .faq-section {
  padding: clamp(34px, 6vw, 72px) 0;
  border-bottom: 1px solid var(--line-mid);
  scroll-margin-top: 74px;
}

.page-faq .faq-section--push {
  background: linear-gradient(180deg, rgba(18, 48, 39, 0.55) 0%, rgba(11, 26, 21, 0) 100%);
}

.page-faq .faq-section__head {
  display: grid;
  gap: 8px;
  max-width: 74ch;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .faq-section__no {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .faq-section h2 {
  margin: 0;
}

.page-faq .faq-section__desc {
  margin: 0;
  color: var(--mist);
}

/* ── 问答折叠 ───────────────────────────────────── */

.page-faq .faq-list {
  border-top: 1px solid var(--line-mid);
}

.page-faq .faq-item {
  position: relative;
  padding-left: 16px;
  border-bottom: 1px solid var(--line-mid);
  transition: background-color 0.25s var(--ease);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: transparent;
  transition: background-color 0.25s var(--ease);
}

.page-faq .faq-item:hover {
  background: rgba(29, 75, 60, 0.18);
}

.page-faq .faq-item.is-open::before {
  background: var(--flame);
}

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

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 18px 4px 18px 0;
  border: 0;
  background: none;
  color: var(--white);
  font: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
}

.page-faq .faq-q__idx {
  flex: 0 0 auto;
  min-width: 2ch;
  font-size: 15px;
  font-weight: 800;
  color: var(--cyan-dim);
  transition: color 0.25s var(--ease);
}

.page-faq .faq-item.is-open .faq-q__idx {
  color: var(--flame);
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-q__sign {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 5px;
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .faq-q__sign::before {
  left: 8px;
  top: 0;
  width: 2px;
  height: 18px;
}

.page-faq .faq-q__sign::after {
  left: 0;
  top: 8px;
  width: 18px;
  height: 2px;
}

.page-faq .faq-item.is-open .faq-q__sign::before {
  transform: scaleY(0);
}

.page-faq .faq-item.is-open .faq-q__sign::after {
  background: var(--flame);
}

.page-faq .faq-a {
  max-width: 78ch;
  padding: 0 8px 22px clamp(30px, 5vw, 48px);
  color: var(--mist);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

.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;
  transition: color 0.25s var(--ease);
}

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

.page-faq .faq-count {
  margin: 18px 0 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

/* ── 推送章节配图 ───────────────────────────────── */

.page-faq .faq-push-media {
  width: 100%;
  max-width: 620px;
  margin: clamp(26px, 4vw, 42px) 0 0;
  aspect-ratio: 10 / 7;
}

.page-faq .faq-push-media .figure-caption {
  margin-top: 12px;
  color: var(--mist);
}

/* ── 浅底说明条 ─────────────────────────────────── */

.page-faq .faq-hint {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 26px;
  margin-top: clamp(26px, 4vw, 38px);
  padding: 20px 22px;
  background: var(--paper);
  border-left: 3px solid var(--flame);
  border-radius: var(--radius);
  color: #16241E;
}

.page-faq .faq-hint p {
  flex: 1 1 320px;
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-hint__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.page-faq .faq-hint a {
  color: #16241E;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 36, 30, 0.35);
  white-space: nowrap;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-hint a:hover {
  color: var(--flame);
  border-bottom-color: var(--flame);
}

/* ── 客服信息块 ─────────────────────────────────── */

.page-faq .faq-contact {
  display: grid;
  gap: 1px;
  margin-top: clamp(26px, 4vw, 38px);
  background: var(--line-mid);
  border: 1px solid var(--line-mid);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-contact__item {
  padding: 20px 22px;
  background: var(--pitch);
}

.page-faq .faq-contact__label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan-dim);
}

.page-faq .faq-contact__value {
  margin: 0;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--white);
  word-break: break-all;
}

/* ── 响应式 ─────────────────────────────────────── */

@media (min-width: 760px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-faq .faq-q {
    font-size: 17px;
  }
}

@media (max-width: 599px) {
  .page-faq .faq-a {
    padding-left: 30px;
    font-size: 15px;
  }

  .page-faq .faq-index .toc-link {
    padding: 7px 12px;
    font-size: 12px;
  }

  .page-faq .faq-hint {
    padding: 18px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item::before,
  .page-faq .faq-q__idx,
  .page-faq .faq-q__sign::before,
  .page-faq .faq-q__sign::after,
  .page-faq .faq-index .toc-link,
  .page-faq .faq-a a,
  .page-faq .faq-hint a {
    transition: none;
  }
}