.page-faq {
  --faq-hero-glow: rgba(212, 175, 55, .12);
  --faq-card-radius: 16px;
  background: var(--color-paper);
}

/* ===== 1. 欢迎区 ===== */
.page-faq .faq-hero {
  background: linear-gradient(135deg, var(--color-bg-deep) 0%, var(--color-bg) 58%, var(--color-bg-soft) 100%);
  color: var(--color-paper);
  padding: 42px 0 58px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "?";
  position: absolute;
  right: -40px;
  top: -70px;
  font-family: var(--font-head);
  font-size: clamp(180px, 30vw, 340px);
  line-height: 1;
  color: rgba(212, 175, 55, .07);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 32px;
  margin-top: 36px;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.page-faq .faq-hero__count {
  font-size: .85rem;
  color: var(--color-steel-light);
  letter-spacing: .06em;
}

.page-faq .faq-hero__title {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  line-height: 1.08;
  margin: 0 0 18px;
  color: var(--color-paper);
  text-transform: uppercase;
}

.page-faq .faq-hero__lead {
  font-size: 1.02rem;
  line-height: 1.8;
  color: rgba(245, 247, 250, .78);
  max-width: 540px;
  margin-bottom: 24px;
}

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

.page-faq .faq-hero__media-wrap {
  position: relative;
  min-width: 0;
}

.page-faq .faq-hero__media {
  border-radius: var(--faq-card-radius);
  box-shadow: var(--shadow-2);
  border: 1px solid rgba(212, 175, 55, .22);
  background: var(--color-bg-soft);
}

.page-faq .faq-hero__media-note {
  display: inline-block;
  margin-top: 12px;
  font-size: .82rem;
  letter-spacing: .08em;
  color: var(--color-gold);
  padding-left: 4px;
}

/* ===== 2. 快速指南 ===== */
.page-faq .faq-guide {
  background: var(--color-paper);
  color: var(--color-charcoal);
  padding: 72px 0 64px;
  position: relative;
}

.page-faq .faq-guide__layout {
  display: grid;
  gap: 36px;
  margin-top: 36px;
}

.page-faq .faq-guide__steps {
  display: grid;
  gap: 14px;
}

.page-faq .guide-step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: var(--color-card);
  border-radius: var(--faq-card-radius);
  padding: 22px 24px;
  box-shadow: var(--shadow-1);
  border: 1px solid rgba(0, 180, 216, .14);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}

.page-faq .guide-step:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
}

.page-faq .guide-step__num {
  font-family: var(--font-head);
  font-size: 1.7rem;
  line-height: 1;
  color: var(--color-gold);
  min-width: 44px;
  text-align: center;
  padding-top: 4px;
}

.page-faq .guide-step__body h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  margin: 0 0 6px;
  color: var(--color-charcoal);
}

.page-faq .guide-step__body p {
  font-size: .92rem;
  line-height: 1.75;
  color: #55606b;
  margin: 0;
}

.page-faq .faq-guide__aside {
  display: grid;
  gap: 14px;
}

.page-faq .faq-guide__media {
  border-radius: var(--faq-card-radius);
  box-shadow: var(--shadow-1);
  background: var(--color-bg);
  overflow: hidden;
}

.page-faq .faq-guide__note {
  font-size: .86rem;
  line-height: 1.7;
  color: var(--color-steel);
  background: var(--color-card);
  border-left: 3px solid var(--color-cyan);
  padding: 12px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 0;
}

/* ===== 3. FAQ 手风琴区 ===== */
.page-faq .faq-faq {
  background: var(--color-bg);
  color: var(--color-paper);
  padding: 76px 0 68px;
  position: relative;
}

.page-faq .faq-faq::before {
  content: "02";
  position: absolute;
  right: 4%;
  top: 24px;
  font-family: var(--font-head);
  font-size: clamp(140px, 22vw, 240px);
  line-height: 1;
  color: rgba(255, 255, 255, .035);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-faq .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-layout {
  display: grid;
  gap: 30px;
  margin-top: 40px;
}

.page-faq .faq-sidenav__box {
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(212, 175, 55, .22);
  border-radius: var(--faq-card-radius);
  padding: 24px 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.page-faq .faq-sidenav__title {
  width: 100%;
  font-family: var(--font-head);
  font-size: .9rem;
  letter-spacing: .12em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin: 0 0 4px;
}

.page-faq .faq-sidenav__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .06);
  color: rgba(245, 247, 250, .82);
  font-size: .88rem;
  text-decoration: none;
  transition: background .2s var(--ease), color .2s var(--ease);
  border: 1px solid transparent;
}

.page-faq .faq-sidenav__link:hover,
.page-faq .faq-sidenav__link:focus-visible {
  background: rgba(212, 175, 55, .14);
  color: var(--color-gold-bright);
  border-color: rgba(212, 175, 55, .3);
}

.page-faq .faq-sidenav__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-cyan);
  flex-shrink: 0;
}

.page-faq .faq-sidenav__support {
  width: 100%;
  margin-top: 8px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-faq .faq-sidenav__support-text {
  font-size: .84rem;
  color: var(--color-steel-light);
}

.page-faq .faq-accordions {
  display: grid;
  gap: 26px;
  min-width: 0;
}

.page-faq .faq-cat-group {
  scroll-margin-top: 110px;
  border-radius: var(--faq-card-radius);
  background: rgba(255, 255, 255, .035);
  border: 1px solid rgba(255, 255, 255, .08);
  padding: 20px 18px 6px;
  transition: border-color .25s var(--ease);
}

.page-faq .faq-cat-group:target {
  border-color: rgba(212, 175, 55, .55);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, .08);
}

.page-faq .faq-cat-group__title {
  font-family: var(--font-head);
  font-size: 1rem;
  letter-spacing: .08em;
  color: var(--color-paper);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-cat-group__title span {
  font-size: 1.4rem;
  color: var(--color-gold);
  opacity: .7;
}

.page-faq .faq-accordions .collapse {
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.page-faq .faq-accordions .collapse:last-child {
  border-bottom: 0;
}

.page-faq .faq-accordions .collapse__toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: transparent;
  border: 0;
  padding: 17px 4px;
  cursor: pointer;
  text-align: left;
  color: var(--color-paper);
  font-family: var(--font-body);
  font-size: .95rem;
  line-height: 1.5;
  transition: color .2s var(--ease);
}

.page-faq .faq-accordions .collapse__toggle:hover,
.page-faq .faq-accordions .collapse__toggle:focus-visible {
  color: var(--color-gold-bright);
}

.page-faq .faq-accordions .collapse__question {
  font-weight: 500;
  flex: 1;
}

.page-faq .faq-accordions .collapse__icon {
  position: relative;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid rgba(212, 175, 55, .5);
  transition: transform .3s var(--ease), background .3s var(--ease);
}

.page-faq .faq-accordions .collapse__icon::before,
.page-faq .faq-accordions .collapse__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 2px;
  background: var(--color-gold);
  border-radius: 1px;
  transform: translate(-50%, -50%);
  transition: background .3s var(--ease);
}

.page-faq .faq-accordions .collapse__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-accordions .collapse[data-open] .collapse__icon {
  background: rgba(212, 175, 55, .16);
  transform: rotate(180deg);
}

.page-faq .faq-accordions .collapse__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s var(--ease);
}

.page-faq .faq-accordions .collapse[data-open] .collapse__panel {
  max-height: 600px;
}

.page-faq .faq-accordions .collapse__body {
  padding: 0 4px 18px;
  color: rgba(245, 247, 250, .78);
  font-size: .9rem;
  line-height: 1.8;
}

.page-faq .faq-accordions .collapse__body p {
  margin: 0;
}

/* ===== 4. 联系支持 ===== */
.page-faq .faq-support {
  background: var(--color-paper);
  color: var(--color-charcoal);
  padding: 76px 0 60px;
  position: relative;
}

.page-faq .faq-support__grid {
  display: grid;
  gap: 16px;
  margin-top: 38px;
}

.page-faq .support-card {
  background: var(--color-card);
  border: 1px solid rgba(42, 61, 82, .1);
  border-radius: var(--faq-card-radius);
  padding: 24px 22px;
  box-shadow: var(--shadow-1);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}

.page-faq .support-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
}

.page-faq .support-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gold-dim);
  border-radius: 12px;
  color: var(--color-gold);
  margin-bottom: 4px;
}

.page-faq .support-card__title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  margin: 0;
  color: var(--color-charcoal);
}

.page-faq .support-card__text {
  margin: 0;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--color-steel);
  word-break: break-all;
}

.page-faq .support-card__note {
  margin: 0;
  font-size: .8rem;
  line-height: 1.6;
  color: var(--color-steel-light);
  padding-top: 6px;
  border-top: 1px dashed rgba(74, 107, 138, .2);
}

.page-faq .support-card--accent {
  background: var(--color-bg);
  border-color: rgba(212, 175, 55, .35);
}

.page-faq .support-card--accent .support-card__icon {
  background: rgba(212, 175, 55, .16);
  color: var(--color-gold-bright);
}

.page-faq .support-card--accent .support-card__title {
  color: var(--color-paper);
}

.page-faq .support-card--accent .support-card__text {
  color: rgba(245, 247, 250, .7);
}

.page-faq .support-card--accent .support-card__note {
  border-top-color: rgba(212, 175, 55, .18);
}

.page-faq .faq-stats {
  margin-top: 34px;
  background: var(--color-bg-deep);
  border-radius: var(--faq-card-radius);
  padding: 26px 20px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-stats::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--color-gold), var(--color-orange));
}

.page-faq .faq-stats__inner {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px 16px;
}

.page-faq .faq-stats__item {
  text-align: center;
  padding: 4px 8px;
}

.page-faq .faq-stats__num {
  display: block;
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  color: var(--color-gold-bright);
  line-height: 1.1;
  margin-bottom: 6px;
}

.page-faq .faq-stats__label {
  font-size: .82rem;
  letter-spacing: .08em;
  color: rgba(245, 247, 250, .65);
}

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 56px 0 64px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
    gap: 44px;
  }

  .page-faq .faq-guide {
    padding: 88px 0 76px;
  }

  .page-faq .faq-faq {
    padding: 92px 0 80px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 250px 1fr;
    align-items: start;
  }

  .page-faq .faq-sidenav__box {
    position: sticky;
    top: 20px;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .page-faq .faq-sidenav__link {
    justify-content: flex-start;
    padding: 10px 14px;
    border-radius: 10px;
  }

  .page-faq .faq-sidenav__support {
    margin-top: 12px;
  }

  .page-faq .faq-support {
    padding: 92px 0 72px;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 1024px) {
  .page-faq .faq-guide__layout {
    grid-template-columns: 1.1fr .9fr;
    align-items: start;
  }

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

  .page-faq .faq-guide__steps {
    padding-right: 8px;
  }

  .page-faq .faq-faq .container,
  .page-faq .faq-guide .container,
  .page-faq .faq-support .container,
  .page-faq .faq-hero .container {
    max-width: var(--container);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }
}