/* ===== 帮助中心（page-faq） ===== */
.page-faq {
  --faq-accent: var(--yz-violet);
  --faq-line: rgba(232, 230, 242, 0.14);
  --faq-glass: rgba(255, 255, 255, 0.06);
  background: var(--yz-black);
  color: var(--yz-text);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5.5vw, 60px) 0 clamp(34px, 6vw, 68px);
  border-bottom: 1px solid var(--faq-line);
  background:
    radial-gradient(115% 85% at 6% -14%, rgba(124, 58, 237, 0.42), transparent 60%),
    radial-gradient(70% 60% at 99% 2%, rgba(34, 211, 238, 0.18), transparent 62%),
    radial-gradient(85% 70% at 46% 118%, rgba(192, 38, 94, 0.16), transparent 68%),
    var(--yz-black);
}

.page-faq .faq-hero__beam {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(232, 230, 242, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 230, 242, 0.05) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: radial-gradient(78% 68% at 36% 0%, #000 0%, transparent 78%);
  mask-image: radial-gradient(78% 68% at 36% 0%, #000 0%, transparent 78%);
  animation: faq-breathe 9s ease-in-out infinite;
}

@keyframes faq-breathe {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 0.9; }
}

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

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(29px, 6.2vw, 60px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.012em;
  background: linear-gradient(96deg, #ffffff 6%, var(--yz-gold-light) 46%, var(--yz-cyan) 96%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-hero__lede {
  margin-top: 18px;
  max-width: 64ch;
  color: var(--yz-muted);
}

/* ---------- 六组快捷入口 ---------- */
.page-faq .faq-cats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-cat {
  display: flex;
}

.page-faq .faq-cat--violet { --faq-accent: var(--yz-violet); }
.page-faq .faq-cat--cyan { --faq-accent: var(--yz-cyan); }
.page-faq .faq-cat--gold { --faq-accent: var(--yz-gold); }
.page-faq .faq-cat--magenta { --faq-accent: var(--yz-magenta); }

.page-faq .faq-cat__link {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  min-height: 118px;
  padding: 16px 16px 14px;
  border: 1px solid var(--faq-line);
  border-radius: 16px;
  background: linear-gradient(152deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.02));
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--yz-text);
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
}

.page-faq .faq-cat__link::after {
  content: "";
  position: absolute;
  right: -46px;
  bottom: -62px;
  width: 148px;
  height: 148px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--faq-accent) 0%, transparent 70%);
  opacity: 0.34;
  transition: opacity 0.3s ease;
}

.page-faq .faq-cat__link:hover,
.page-faq .faq-cat__link:focus-visible {
  transform: translateY(-3px);
  border-color: var(--faq-accent);
  box-shadow: 0 20px 42px -28px var(--faq-accent);
}

.page-faq .faq-cat__link:hover::after {
  opacity: 0.6;
}

.page-faq .faq-cat__no {
  position: relative;
  z-index: 1;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--faq-accent);
}

.page-faq .faq-cat__name {
  position: relative;
  z-index: 1;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}

.page-faq .faq-cat__count {
  position: relative;
  z-index: 1;
  margin-top: auto;
  font-size: 12px;
  color: var(--yz-muted);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  position: relative;
  --faq-accent: var(--yz-violet);
}

.page-faq .faq-group--violet { --faq-accent: var(--yz-violet); }
.page-faq .faq-group--cyan { --faq-accent: var(--yz-cyan); }
.page-faq .faq-group--gold { --faq-accent: var(--yz-gold); }
.page-faq .faq-group--magenta { --faq-accent: var(--yz-magenta); }

.page-faq .faq-group--indigo {
  background: linear-gradient(180deg, rgba(27, 18, 54, 0.78), rgba(11, 11, 20, 0) 88%);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 10px;
  padding-left: 16px;
  border-left: 3px solid var(--faq-accent);
  margin-bottom: 26px;
}

.page-faq .faq-group__no {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--faq-accent);
}

.page-faq .faq-group__note {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--yz-muted);
}

.page-faq .faq-group__head--media {
  border-left: 0;
  padding-left: 0;
}

.page-faq .faq-group__intro {
  display: grid;
  gap: 10px;
  padding-left: 16px;
  border-left: 3px solid var(--faq-accent);
}

.page-faq .faq-shot {
  margin: 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--yz-radius);
  background: linear-gradient(158deg, rgba(124, 58, 237, 0.18), rgba(11, 11, 20, 0.92));
  box-shadow: var(--yz-shadow);
  overflow: hidden;
}

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

.page-faq .faq-shot .yz-media__caption {
  display: block;
  padding: 10px 14px 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--yz-muted);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 900px;
}

.page-faq .faq-item {
  position: relative;
  border: 1px solid var(--faq-line);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.072), rgba(255, 255, 255, 0.028));
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--faq-accent), rgba(34, 211, 238, 0.6));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.page-faq .faq-item:hover {
  border-color: rgba(232, 230, 242, 0.26);
  transform: translateY(-2px);
}

.page-faq .faq-item:has(.yz-disclosure__trigger[aria-expanded="true"]) {
  border-color: rgba(124, 58, 237, 0.5);
  box-shadow: var(--yz-glow-violet);
}

.page-faq .faq-item:has(.yz-disclosure__trigger[aria-expanded="true"])::before {
  opacity: 1;
}

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

.page-faq .faq-item .yz-disclosure__trigger {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 16px 16px 16px 18px;
  border: 0;
  background: none;
  color: var(--yz-text);
  font-family: var(--yz-font);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
}

.page-faq .faq-item .yz-disclosure__trigger:focus-visible {
  outline: 2px solid var(--yz-cyan);
  outline-offset: -2px;
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--faq-accent);
}

.page-faq .faq-item__label {
  flex: 1 1 auto;
}

.page-faq .faq-item .yz-disclosure__icon {
  flex: 0 0 auto;
  margin-left: auto;
  align-self: center;
  color: var(--yz-cyan);
  transition: transform 0.3s ease;
}

.page-faq .faq-item .yz-disclosure__trigger[aria-expanded="true"] .yz-disclosure__icon {
  transform: rotate(45deg);
}

.page-faq .faq-item .yz-disclosure__panel {
  padding: 0 18px 18px 46px;
}

.page-faq .faq-item .yz-disclosure__panel p {
  margin: 0 0 10px;
  font-size: 14.6px;
  line-height: 1.82;
  color: var(--yz-muted);
}

.page-faq .faq-item .yz-disclosure__panel p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-key {
  color: var(--yz-gold-light);
  font-size: 0.96em;
  letter-spacing: 0.06em;
}

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

.page-faq .faq-inline-action .yz-copy {
  cursor: pointer;
}

/* ---------- 组尾下一步 ---------- */
.page-faq .faq-next {
  margin: 22px 0 0;
  font-size: 14.5px;
  color: var(--yz-muted);
}

.page-faq .faq-next a {
  margin-left: 6px;
  color: var(--yz-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.45);
  padding-bottom: 2px;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-next a:hover,
.page-faq .faq-next a:focus-visible {
  color: var(--yz-gold);
  border-color: var(--yz-gold);
}

/* ---------- 尾部 CTA ---------- */
.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin-top: 30px;
  padding: 22px;
  border: 1px solid rgba(124, 58, 237, 0.4);
  border-radius: var(--yz-radius);
  background:
    radial-gradient(90% 130% at 8% 0%, rgba(124, 58, 237, 0.32), transparent 62%),
    radial-gradient(70% 120% at 98% 100%, rgba(34, 211, 238, 0.16), transparent 66%),
    rgba(27, 18, 54, 0.72);
  box-shadow: var(--yz-shadow);
}

.page-faq .faq-cta__text {
  flex: 1 1 240px;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--yz-text);
}

.page-faq .faq-totop {
  font-size: 13px;
  color: var(--yz-muted);
  text-decoration: none;
  border-bottom: 1px dashed rgba(160, 156, 184, 0.5);
  padding-bottom: 2px;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-totop:hover,
.page-faq .faq-totop:focus-visible {
  color: var(--yz-gold);
  border-color: var(--yz-gold);
}

/* ---------- 滚动锚点留白 ---------- */
.page-faq .faq-group[id] {
  scroll-margin-top: 96px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-cat__link {
    min-height: 126px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-group__head--media {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    align-items: start;
    gap: 34px;
  }

  .page-faq .faq-group__head--flip {
    grid-template-columns: 1fr 1.5fr;
  }

  .page-faq .faq-group__head--flip .faq-group__intro {
    order: 2;
  }

  .page-faq .faq-group__head--flip .faq-shot {
    order: 1;
  }

  .page-faq .faq-shot img {
    max-height: 380px;
  }

  .page-faq .faq-group__head--media + .faq-list {
    max-width: 100%;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(12, 1fr);
  }

  .page-faq .faq-cat {
    grid-column: span 4;
  }

  .page-faq .faq-cat:nth-child(1) { grid-column: span 5; }
  .page-faq .faq-cat:nth-child(2) { grid-column: span 3; }
  .page-faq .faq-cat:nth-child(3) { grid-column: span 4; }
  .page-faq .faq-cat:nth-child(4) { grid-column: span 5; }
  .page-faq .faq-cat:nth-child(5) { grid-column: span 3; }
  .page-faq .faq-cat:nth-child(6) { grid-column: span 4; }

  .page-faq .faq-cat:nth-child(even) .faq-cat__link {
    min-height: 140px;
  }

  .page-faq .faq-item .yz-disclosure__trigger {
    font-size: 16px;
    padding: 18px 20px 18px 22px;
  }

  .page-faq .faq-item .yz-disclosure__panel {
    padding: 0 22px 20px 58px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__beam {
    animation: none;
  }

  .page-faq .faq-cat__link,
  .page-faq .faq-item,
  .page-faq .faq-item .yz-disclosure__icon {
    transition: none;
  }

  .page-faq .faq-item:hover,
  .page-faq .faq-cat__link:hover {
    transform: none;
  }
}