/* ===== 帮助中心页专属样式 ===== */
.page-faq {
  position: relative;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-faq::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--purple), var(--gold), var(--orange));
  z-index: 1;
  pointer-events: none;
}

/* ---- 页内公共标题 ---- */
.page-faq .faq-kicker {
  display: inline-block;
  position: relative;
  padding-left: 32px;
  margin-bottom: 14px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-kicker::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 22px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--purple));
  transform: translateY(-50%);
}

.page-faq .faq-heading {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.28;
  color: var(--text);
}

/* ---- Hero ---- */
.page-faq .faq-hero {
  position: relative;
  padding: 48px 0 40px;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  top: -40px;
  width: 360px;
  height: 260px;
  background: radial-gradient(circle, rgba(138, 43, 226, 0.16), transparent 70%);
  pointer-events: none;
}

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

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(28px, 4.4vw, 44px);
  line-height: 1.22;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 640px;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.85;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-hero__media {
  position: relative;
}

.page-faq .faq-hero__media::before {
  content: "";
  position: absolute;
  inset: -8% 12% 12% -8%;
  background: linear-gradient(135deg, var(--purple-deep), transparent 72%);
  border-radius: var(--radius);
  z-index: -1;
  opacity: 0.32;
}

.page-faq .faq-hero__img,
.page-faq .faq-how__img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line-violet);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-hero__img {
  width: 100%;
  aspect-ratio: 3 / 1;
  object-position: center 32%;
}

/* ---- 快速导航 ---- */
.page-faq .faq-nav {
  padding: 48px 0 20px;
  position: relative;
}

.page-faq .faq-nav__head {
  margin-bottom: 28px;
}

.page-faq .faq-nav__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-nav__item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 20px 20px;
  background: linear-gradient(135deg, var(--bg-elev) 0%, var(--bg-elev-2) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  overflow: hidden;
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.page-faq .faq-nav__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--gold), var(--gold-deep));
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--ease);
}

.page-faq .faq-nav__item::after {
  content: "";
  position: absolute;
  right: -20px;
  top: -20px;
  width: 90px;
  height: 90px;
  background: radial-gradient(circle, rgba(138, 43, 226, 0.12), transparent 70%);
  opacity: 0;
  transition: opacity var(--ease);
}

.page-faq .faq-nav__item:hover,
.page-faq .faq-nav__item:focus-visible {
  transform: translateY(-3px);
  border-color: var(--line-violet);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.32);
  outline: none;
}

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

.page-faq .faq-nav__item:hover::after {
  opacity: 1;
}

.page-faq .faq-nav__idx {
  position: absolute;
  right: 16px;
  top: 12px;
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--purple);
}

.page-faq .faq-nav__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255, 215, 0, 0.08);
  border: 1px solid var(--line);
  color: var(--gold);
}

.page-faq .faq-nav__icon svg {
  display: block;
  width: 34px;
  height: 34px;
}

.page-faq .faq-nav__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
}

.page-faq .faq-nav__desc {
  font-size: 13px;
  color: var(--text-dim);
}

/* ---- 高频问题 ---- */
.page-faq .faq-main {
  padding: 48px 0 40px;
}

.page-faq .faq-main__layout {
  display: grid;
  gap: 40px;
}

.page-faq .faq-main__hint {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .faq-main__stats {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 28px;
  padding: 18px;
  background: var(--bg-elev-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-faq .faq-stat__num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 26px;
  color: var(--gold);
}

.page-faq .faq-stat__label {
  font-size: 13px;
  color: var(--text-dim);
}

.page-faq .faq-stat__divider {
  height: 1px;
  margin: 10px 0;
  background: var(--line);
}

.page-faq .faq-group {
  margin-bottom: 38px;
}

.page-faq .faq-group__title {
  margin: 0 0 14px;
  padding-left: 14px;
  border-left: 3px solid var(--gold-deep);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  color: var(--gold);
}

.page-faq .faq-item {
  position: relative;
  margin-bottom: 10px;
  background: var(--bg-elev-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--ease), box-shadow var(--ease);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-45deg, rgba(255, 215, 0, 0.03) 0 2px, transparent 2px 14px);
  opacity: 0;
  transition: opacity var(--ease);
  pointer-events: none;
}

.page-faq .faq-item[open]::before {
  opacity: 1;
}

.page-faq .faq-item:hover {
  border-color: var(--line-violet);
}

.page-faq .faq-item[open] {
  border-color: var(--line-violet);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.3);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  list-style: none;
  cursor: pointer;
  user-select: none;
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
  border-radius: calc(var(--radius-sm) - 1px);
}

.page-faq .faq-item__mark {
  flex-shrink: 0;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  color: var(--purple);
  border: 1px solid var(--line-violet);
  border-radius: 4px;
  padding: 2px 6px;
}

.page-faq .faq-item[open] .faq-item__mark {
  color: var(--gold);
  border-color: var(--line);
}

.page-faq .faq-item__heading {
  flex: 1;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}

.page-faq .faq-item__icon {
  position: relative;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--gold);
  border-radius: 2px;
  transition: transform var(--ease), opacity var(--ease);
}

.page-faq .faq-item__icon::before {
  left: 3px;
  top: 9px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__icon::after {
  left: 9px;
  top: 3px;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  position: relative;
  padding: 0 16px 18px 52px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

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

/* ---- 操作指引 ---- */
.page-faq .faq-how {
  padding: 48px 0;
}

.page-faq .faq-how__grid {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-faq .faq-how__img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-position: center;
}

.page-faq .faq-how__media {
  position: relative;
}

.page-faq .faq-how__media::after {
  content: "";
  position: absolute;
  inset: 8% -4% -6% 4%;
  z-index: -1;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--purple-deep), transparent 72%);
  opacity: 0.28;
}

.page-faq .faq-steps {
  display: grid;
  gap: 20px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps__item {
  display: flex;
  gap: 16px;
}

.page-faq .faq-steps__num {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 107, 53, 0.32);
  border-radius: 10px;
  background: rgba(255, 107, 53, 0.08);
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 15px;
  color: var(--orange);
}

.page-faq .faq-steps__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
}

.page-faq .faq-steps__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .faq-how__copy .btn {
  margin-top: 30px;
}

/* ---- 联系支持 ---- */
.page-faq .faq-support {
  padding: 16px 0 64px;
}

.page-faq .faq-support__panel {
  position: relative;
  display: grid;
  gap: 30px;
  padding: 28px;
  background: linear-gradient(135deg, var(--bg-elev) 0%, var(--bg-elev-2) 100%);
  border: 1px solid var(--line-violet);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-support__panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--purple));
}

.page-faq .faq-support__copy p {
  margin: 16px 0 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-support__row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

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

.page-faq .faq-support__label {
  flex-shrink: 0;
  font-size: 13px;
  color: var(--text-dim);
}

.page-faq .faq-support__value {
  text-align: right;
  font-size: 14px;
  color: var(--text);
  word-break: break-word;
}

/* ---- 响应式：平板与桌面 ---- */
@media (min-width: 700px) {
  .page-faq .faq-nav__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-main__stats {
    grid-template-columns: repeat(3, 1fr);
    align-items: center;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 40px;
  }

  .page-faq .faq-main__layout {
    grid-template-columns: 320px 1fr;
    align-items: start;
    gap: 48px;
  }

  .page-faq .faq-main__intro {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-faq .faq-how__grid {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
  }

  .page-faq .faq-support__panel {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-nav__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ---- 窄屏细节 ---- */
@media (max-width: 560px) {
  .page-faq .faq-hero {
    padding-top: 36px;
  }

  .page-faq .faq-hero__img {
    aspect-ratio: 4 / 1;
  }

  .page-faq .faq-support__panel {
    padding: 22px 18px;
  }

  .page-faq .faq-support__row {
    flex-direction: column;
    gap: 4px;
  }

  .page-faq .faq-support__value {
    text-align: left;
  }
}