.page-faq {
  --faq-grid-line: rgba(16, 185, 129, 0.14);
  --faq-grid-strong: rgba(16, 185, 129, 0.35);
  --faq-hero-glow: rgba(16, 185, 129, 0.08);
  --faq-answer-bg: rgba(31, 41, 55, 0.82);
  --faq-warn-border: rgba(245, 158, 11, 0.45);
  --faq-warn-bg: rgba(245, 158, 11, 0.08);
  background: #0A0E1A;
  color: var(--m6-text);
}

/* ===== 首屏 Hero ===== */
.page-faq .faq-hero {
  padding: 2.25rem 0 2.5rem;
  border-bottom: 1px solid var(--m6-line);
  background:
    radial-gradient(circle at 85% 30%, var(--faq-hero-glow), transparent 58%),
    linear-gradient(180deg, rgba(16, 185, 129, 0.04), transparent 70%);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 2rem;
  align-items: end;
}

.page-faq .faq-hero__content .m6-page-copy {
  color: var(--m6-text);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 2rem;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.9rem 1rem 0.85rem;
  border: 1px solid var(--m6-line);
  background: rgba(17, 24, 39, 0.65);
  transition: border-color 0.2s var(--m6-ease), background 0.2s var(--m6-ease);
}

.page-faq .faq-stat:hover {
  border-color: var(--faq-grid-strong);
  background: var(--m6-accent-soft);
}

.page-faq .faq-stat__num {
  font-size: 1.7rem;
  line-height: 1.1;
  color: var(--m6-accent);
}

.page-faq .faq-stat__label {
  font-size: 0.8rem;
  color: var(--m6-dim);
}

.page-faq .faq-hero__emblem {
  display: flex;
  justify-content: flex-start;
}

.page-faq .faq-hero__emblem-grid {
  position: relative;
  display: grid;
  place-items: center;
  width: 112px;
  height: 112px;
  border: 1px solid var(--m6-line-blue);
  background:
    linear-gradient(var(--m6-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--m6-line) 1px, transparent 1px);
  background-size: 14px 14px;
}

.page-faq .faq-hero__emblem-grid::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 18px;
  height: 18px;
  border-top: 2px solid var(--m6-accent);
  border-left: 2px solid var(--m6-accent);
}

.page-faq .faq-hero__emblem-grid img {
  display: block;
  width: 100px;
  height: 100px;
  object-fit: cover;
  max-width: 100%;
}

/* ===== 顶部分类标签 ===== */
.page-faq .faq-tabs {
  display: flex;
  gap: 0.6rem;
  overflow-x: auto;
  padding: 1.25rem 0 1rem;
  scrollbar-width: none;
}

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

.page-faq .faq-tabs__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--m6-line);
  border-radius: 999px;
  color: var(--m6-text);
  text-decoration: none;
  font-size: 0.85rem;
  background: rgba(17, 24, 39, 0.55);
  transition: border-color 0.2s var(--m6-ease), background 0.2s var(--m6-ease), color 0.2s var(--m6-ease);
}

.page-faq .faq-tabs__num {
  font-family: var(--m6-mono);
  color: var(--m6-accent);
  font-size: 0.78rem;
}

.page-faq .faq-tabs__link:hover,
.page-faq .faq-tabs__link:focus-visible {
  border-color: var(--m6-accent);
  background: var(--m6-accent-soft);
  color: var(--m6-heading);
}

/* ===== 主体两栏布局 ===== */
.page-faq .faq-layout {
  padding-top: 2.25rem;
  padding-bottom: 3rem;
  align-items: start;
}

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

.page-faq .faq-side__kicker {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--m6-dim);
  margin-bottom: 0.75rem;
}

.page-faq .faq-side__nav {
  border-left: 2px solid var(--faq-grid-line);
  margin-bottom: 1.75rem;
}

.page-faq .faq-side__link {
  position: relative;
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.25rem 0.6rem;
  padding: 0.9rem 1rem 0.9rem 1.1rem;
  border-bottom: 1px solid var(--m6-line);
  text-decoration: none;
  transition: background 0.2s var(--m6-ease);
}

.page-faq .faq-side__link::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 0;
  width: 2px;
  height: 100%;
  background: var(--m6-accent);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.25s var(--m6-ease);
}

.page-faq .faq-side__link:hover::before,
.page-faq .faq-side__link:focus-visible::before {
  transform: scaleY(1);
}

.page-faq .faq-side__link:hover {
  background: var(--m6-accent-soft);
}

.page-faq .faq-side__num {
  grid-row: span 2;
  font-size: 1rem;
  color: var(--m6-accent);
  padding-top: 0.15rem;
}

.page-faq .faq-side__title {
  display: block;
  color: var(--m6-heading);
  font-weight: 700;
  font-size: 0.95rem;
}

.page-faq .faq-side__desc {
  display: block;
  color: var(--m6-dim);
  font-size: 0.8rem;
}

.page-faq .faq-side__note p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.7;
}

/* ===== 主区分组 ===== */
.page-faq .faq-main {
  display: grid;
  gap: 2.6rem;
}

.page-faq .faq-group {
  padding-top: 0.4rem;
  border-top: 1px solid var(--m6-line);
  scroll-margin-top: 5rem;
}

.page-faq .faq-group:target {
  border-color: var(--faq-grid-strong);
}

.page-faq .faq-group__head {
  margin-bottom: 1.25rem;
}

.page-faq .faq-group__title {
  margin: 0.55rem 0 0.45rem;
  font-size: clamp(1.4rem, 0.8rem + 2vw, 2rem);
  line-height: 1.22;
  color: var(--m6-heading);
  letter-spacing: -0.01em;
}

.page-faq .faq-group__lead {
  color: var(--m6-dim);
  font-size: 0.95rem;
  margin: 0;
  max-width: 620px;
}

/* ===== 手风琴折叠列表 ===== */
.page-faq .faq-list {
  display: grid;
  gap: 0.75rem;
}

.page-faq .faq-fold {
  border: 1px solid var(--m6-line);
  background: var(--m6-bg-card);
  transition: border-color 0.2s var(--m6-ease);
}

.page-faq .faq-fold[open] {
  border-color: var(--faq-grid-strong);
}

.page-faq .faq-fold__q {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.05rem 2.8rem 1.05rem 1rem;
  list-style: none;
  cursor: pointer;
  color: var(--m6-heading);
  font-weight: 700;
  font-size: 0.96rem;
  line-height: 1.5;
}

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

.page-faq .faq-fold__q::before,
.page-faq .faq-fold__q::after {
  content: "";
  position: absolute;
  right: 1.15rem;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 2px;
  background: var(--m6-accent);
  transition: transform 0.2s var(--m6-ease), opacity 0.2s var(--m6-ease);
}

.page-faq .faq-fold__q::after {
  width: 2px;
  height: 14px;
}

.page-faq .faq-fold[open] .faq-fold__q::after {
  opacity: 0;
  transform: translateY(-50%) scaleY(0);
}

.page-faq .faq-fold__q:hover {
  background: var(--m6-accent-soft);
}

.page-faq .faq-fold__num {
  flex: 0 0 auto;
  color: var(--m6-accent);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

.page-faq .faq-fold__a {
  background: var(--faq-answer-bg);
  border-left: 3px solid var(--m6-accent);
  padding: 1rem 1.25rem 1.1rem;
  color: var(--m6-text);
  font-size: 0.94rem;
  line-height: 1.75;
}

.page-faq .faq-fold__a p {
  margin: 0;
}

.page-faq .faq-fold__a p + p {
  margin-top: 0.55rem;
}

.page-faq .faq-fold__more {
  margin-top: 0.6rem;
}

.page-faq .faq-tip {
  border: 1px solid var(--faq-warn-border);
  background: var(--faq-warn-bg);
  color: var(--m6-orange);
  padding: 0.6rem 0.85rem;
  font-size: 0.88rem;
  margin-top: 0.6rem;
  line-height: 1.6;
}

/* ===== 联系帮助台 ===== */
.page-faq .faq-support {
  padding: 2.75rem 0 3rem;
  border-top: 1px solid var(--m6-line);
  background:
    linear-gradient(180deg, transparent, rgba(16, 185, 129, 0.05)),
    var(--m6-bg);
}

.page-faq .faq-support__grid {
  display: grid;
  gap: 2rem;
}

.page-faq .faq-support__title {
  margin: 0.55rem 0 0.5rem;
  font-size: clamp(1.6rem, 1rem + 2.5vw, 2.25rem);
  color: var(--m6-heading);
}

.page-faq .faq-support__copy {
  color: var(--m6-dim);
  max-width: 580px;
  line-height: 1.75;
}

.page-faq .faq-support__list {
  list-style: none;
  margin: 1.5rem 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.page-faq .faq-support__list li {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--m6-line);
  font-size: 0.93rem;
  word-break: break-all;
}

.page-faq .faq-support__label {
  color: var(--m6-dim);
  font-size: 0.88rem;
}

.page-faq .faq-support__value {
  color: var(--m6-heading);
}

.page-faq .faq-support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-faq .faq-support__figure {
  margin: 0;
}

.page-faq .faq-support__frame {
  display: inline-block;
  padding: 0.5rem;
  border: 1px solid var(--m6-line);
  background:
    linear-gradient(var(--m6-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--m6-line) 1px, transparent 1px);
  background-size: 16px 16px;
  max-width: 100%;
}

.page-faq .faq-support__frame img {
  display: block;
  width: 300px;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-support__figure figcaption {
  margin-top: 0.6rem;
}

.page-faq .faq-support__figure .m6-caption p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--m6-dim);
}

/* ===== 桌面端 ===== */
@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding: 3.5rem 0 3rem;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 160px;
    gap: 2.5rem;
  }

  .page-faq .faq-hero__emblem {
    justify-content: flex-end;
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
  }

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

  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 3.5rem;
    padding-top: 3rem;
    padding-bottom: 4rem;
  }

  .page-faq .faq-side {
    display: block;
    position: sticky;
    top: 6.5rem;
  }

  .page-faq .faq-main {
    gap: 4rem;
  }

  .page-faq .faq-group {
    border-top: none;
    border-left: 1px solid var(--faq-grid-line);
    padding-left: 2rem;
  }

  .page-faq .faq-group:target {
    border-left: 3px solid var(--m6-accent);
    padding-left: calc(2rem - 2px);
  }

  .page-faq .faq-support {
    padding: 4.25rem 0;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 4rem;
    align-items: center;
  }

  .page-faq .faq-support__list li {
    grid-template-columns: 110px minmax(0, 1fr);
  }
}