.page-faq {
  --faq-index-w: 258px;
  --faq-accent: var(--blue);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(1.75rem, 4.5vw, 3.25rem) clamp(2.25rem, 6vw, 4rem);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -160px;
  right: -180px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 107, 255, 0.3), transparent 68%);
  pointer-events: none;
}

.page-faq .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: center;
}

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

.page-faq .faq-hero h1 {
  margin: 0.6rem 0 0;
  font-size: clamp(1.9rem, 5.6vw, 3.4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  margin: 1.1rem 0 0;
  max-width: 40ch;
  font-size: clamp(0.98rem, 2.2vw, 1.06rem);
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-hero__facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: clamp(1.5rem, 3.5vw, 2.25rem) 0 0;
  padding: 0;
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--hair);
  border-radius: 999px;
  background: rgba(20, 64, 45, 0.72);
  font-size: 0.86rem;
  color: var(--silver);
}

.page-faq .faq-hero__num {
  font-family: var(--font-num);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--orange);
}

.page-faq .faq-hero__media {
  margin: 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

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

.page-faq .faq-index__title {
  margin: 0 0 0.9rem;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.25rem;
  border-left: 2px solid var(--hair);
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.6rem 0.8rem 0.6rem 1rem;
  margin-left: -2px;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--silver);
  font-size: 0.94rem;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-index__list a b {
  font-family: var(--font-num);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--paper);
  background: rgba(31, 107, 255, 0.14);
  border-left-color: var(--blue);
}

.page-faq .faq-index__list a:hover b,
.page-faq .faq-index__list a:focus-visible b {
  color: var(--blue);
}

.page-faq .faq-index__note {
  margin: 1.15rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--hair);
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-panels {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 6rem;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(2.5rem, 6vw, 4.25rem);
  padding-top: clamp(2rem, 5vw, 3.25rem);
  border-top: 1px solid var(--hair);
}

.page-faq .faq-group__head {
  display: grid;
  justify-items: start;
  gap: 0.7rem;
  margin-bottom: clamp(1.25rem, 3vw, 1.75rem);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-size: clamp(1.4rem, 3.6vw, 2rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 42ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 折叠面板 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-item {
  border-radius: var(--radius-md);
  background: var(--paper);
  border: 1px solid rgba(16, 22, 26, 0.08);
  overflow: hidden;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.page-faq .faq-item[open] {
  box-shadow: var(--shadow-1);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.85rem;
  padding: 1.05rem 1.15rem;
  list-style: none;
  cursor: pointer;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -3px;
}

.page-faq .faq-item__no {
  font-family: var(--font-num);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--blue-deep);
}

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

.page-faq .faq-item__icon {
  position: relative;
  width: 18px;
  height: 18px;
  flex: none;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  border-radius: 2px;
  background: var(--orange);
  transform: translateY(-50%);
  transition: transform 0.25s ease;
}

.page-faq .faq-item__icon::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .faq-item__a {
  padding: 0 1.15rem 1.25rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: #26302F;
  border-top: 1px solid rgba(16, 22, 26, 0.09);
  margin-top: 0;
  padding-top: 1rem;
}

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

.page-faq .faq-item__a p + p {
  margin-top: 0.7rem;
}

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

.page-faq .faq-item__a .copy-btn {
  margin-top: 0.9rem;
  font-size: 0.88rem;
  padding: 0.55rem 1.05rem;
}

.page-faq .faq-figure {
  margin: clamp(1.5rem, 3.5vw, 2.25rem) 0 0;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-figure .media__caption {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  line-height: 1.65;
}

/* ---------- 收尾联系 ---------- */
.page-faq .faq-foot {
  padding-block: clamp(2.5rem, 6vw, 4rem);
  background:
    linear-gradient(120deg, rgba(31, 107, 255, 0.16), transparent 52%),
    var(--night-deep);
}

.page-faq .faq-foot__inner {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

.page-faq .faq-foot__copy h2 {
  margin: 0;
  font-size: clamp(1.35rem, 3.6vw, 1.9rem);
  font-weight: 900;
  line-height: 1.25;
  color: var(--paper);
}

.page-faq .faq-foot__copy p {
  margin: 0.75rem 0 0;
  max-width: 46ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-foot__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

/* ---------- 响应式 ---------- */
@media (max-width: 599px) {
  .page-faq .faq-hero__num {
    font-size: 1.15rem;
  }

  .page-faq .faq-item__q {
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-areas:
      "no text"
      "icon icon";
    gap: 0.5rem 0.7rem;
  }

  .page-faq .faq-item__no { grid-area: no; }
  .page-faq .faq-item__text { grid-area: text; }

  .page-faq .faq-item__icon {
    grid-area: icon;
    justify-self: start;
    margin-top: 0.15rem;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-foot__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2.5rem;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-faq .faq-hero__media {
    justify-self: end;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 6rem;
  }

  .page-faq .faq-item__q {
    padding: 1.15rem 1.35rem;
    font-size: 1.03rem;
  }

  .page-faq .faq-item__a {
    padding: 1.05rem 1.35rem 1.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-index__list a,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after {
    transition: none;
  }
}