/* ===== 帮助中心 /help-center/ 页面专属样式 ===== */
.page-faq {
  --faq-surface: rgba(14, 44, 69, 0.62);
  --faq-surface-strong: var(--deep-700);
  --faq-edge: var(--deep-500);
  --faq-shadow: 0 16px 34px rgba(4, 16, 27, 0.55);
}

/* ---- 首屏 ---- */
.page-faq .faq-hero {
  max-width: 860px;
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 14px;
}

.page-faq .faq-hero .display {
  margin: 0 0 18px;
  overflow-wrap: break-word;
}

.page-faq .faq-desk {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-top: 30px;
  padding: 18px 20px;
  border-radius: var(--r-md);
  border: 1px solid rgba(232, 163, 61, 0.38);
  background: rgba(246, 217, 168, 0.07);
}

.page-faq .faq-desk__dot {
  flex: none;
  width: 10px;
  height: 10px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--amber-500);
  box-shadow: 0 0 0 4px rgba(232, 163, 61, 0.18);
}

.page-faq .faq-desk p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-desk strong {
  color: var(--amber-200);
  font-weight: 600;
}

/* ---- 入口索引 ---- */
.page-faq .faq-index {
  display: grid;
  gap: 30px;
}

.page-faq .faq-index__sub {
  margin: 12px 0 0;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .faq-entry {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-entry__item {
  position: relative;
  padding: 20px 20px 22px;
  border-radius: var(--r-md);
  border: 1px solid var(--faq-edge);
  background: var(--faq-surface);
  transition: transform var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}

.page-faq .faq-entry__item:hover {
  transform: translateY(-2px);
  border-color: var(--green-600);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-entry__item:focus-within {
  border-color: var(--green-400);
  box-shadow: 0 0 0 2px rgba(95, 211, 168, 0.35);
}

.page-faq .faq-entry__num {
  display: block;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--green-400);
}

.page-faq .faq-entry__title {
  margin: 10px 0 8px;
  font-size: 18.5px;
  line-height: 1.45;
  font-weight: 600;
}

.page-faq .faq-entry__title a {
  color: var(--white-100);
  text-decoration: none;
}

.page-faq .faq-entry__title a::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--r-md);
}

.page-faq .faq-entry__desc {
  margin: 0;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.75;
}

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

.page-faq .faq-index__figure .img-frame {
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-faq .faq-index__figure .img-frame__caption {
  display: block;
  margin-top: 12px;
  color: var(--text-dim);
  font-size: 13.5px;
  line-height: 1.7;
}

/* ---- 问答区 ---- */
.page-faq .faq-list__lead {
  max-width: 720px;
  margin: 12px 0 0;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-groups {
  display: grid;
  gap: 34px;
  margin-top: 38px;
}

.page-faq .faq-group {
  display: grid;
  gap: 18px;
  padding-top: 26px;
  border-top: 1px solid var(--faq-edge);
}

.page-faq .faq-group__num {
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--green-400);
}

.page-faq .faq-group__head .h3 {
  margin: 8px 0 8px;
  font-size: 21px;
  line-height: 1.4;
}

.page-faq .faq-group__note {
  margin: 0;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .faq-group__list {
  display: grid;
  gap: 12px;
  min-width: 0;
}

/* ---- 手风琴 ---- */
.page-faq .faq-item {
  border-radius: var(--r-sm);
  border: 1px solid var(--faq-edge);
  background: var(--faq-surface);
  transition: border-color var(--t-base), background var(--t-base);
}

.page-faq .faq-item[open] {
  background: var(--faq-surface-strong);
  border-color: var(--green-800);
}

.page-faq .faq-item > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 18px;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white-100);
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--green-400);
  outline-offset: -2px;
  border-radius: var(--r-sm);
  box-shadow: 0 0 0 3px rgba(95, 211, 168, 0.28);
}

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

.page-faq .faq-item__sign {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 4px;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--green-400);
  border-radius: 2px;
  transition: transform var(--t-base), opacity var(--t-base);
}

.page-faq .faq-item__sign::before {
  left: 0;
  top: 8px;
  width: 18px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  left: 8px;
  top: 0;
  width: 2px;
  height: 18px;
}

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

.page-faq .faq-item__body {
  margin: 0 18px 18px;
  padding-left: 16px;
  border-left: 2px solid var(--faq-edge);
  transition: border-color var(--t-base);
}

.page-faq .faq-item[open] .faq-item__body {
  border-left-color: var(--green-600);
}

.page-faq .faq-item__body p {
  margin: 0 0 12px;
  color: var(--text-soft);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}

/* ---- 刷新刻度条 ---- */
.page-faq .faq-tickline {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--r-pill);
  border: 1px solid var(--faq-edge);
  background: rgba(7, 26, 43, 0.55);
}

.page-faq .faq-tickline__cap {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber-500);
  white-space: nowrap;
}

.page-faq .faq-tickline__rail {
  flex: 1 1 auto;
  min-width: 40px;
  height: 8px;
  border-radius: var(--r-pill);
  background: repeating-linear-gradient(90deg, var(--green-600) 0 2px, var(--deep-500) 2px 12px);
}

/* ---- 小屏 / PC 对比 ---- */
.page-faq .faq-shot {
  margin: 0;
}

.page-faq .faq-shot .img-frame {
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-faq .faq-shot .img-frame__caption {
  display: block;
  margin-top: 12px;
  color: var(--text-dim);
  font-size: 13.5px;
  line-height: 1.7;
}

.page-faq .faq-compare {
  display: grid;
  gap: 12px;
}

.page-faq .faq-compare__col {
  padding: 18px 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--faq-edge);
  background: rgba(7, 26, 43, 0.5);
  transition: border-color var(--t-base), transform var(--t-base);
}

.page-faq .faq-compare__col:hover {
  transform: translateY(-2px);
  border-color: var(--green-800);
}

.page-faq .faq-compare__title {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--green-400);
  letter-spacing: 0.02em;
}

.page-faq .faq-compare__list {
  margin: 0;
  padding-left: 18px;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.85;
}

.page-faq .faq-compare__list li + li {
  margin-top: 6px;
}

/* ---- 底部联系 ---- */
.page-faq .faq-cta {
  display: grid;
  gap: 24px;
}

.page-faq .faq-cta .eyebrow {
  margin: 0 0 12px;
}

.page-faq .faq-cta .h2 {
  margin: 0 0 14px;
}

.page-faq .faq-cta__text p {
  margin: 0 0 12px;
  max-width: 640px;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-cta__contact {
  color: var(--green-400);
  font-size: 14.5px;
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---- 中屏起：非对称栅格 ---- */
@media (min-width: 700px) {
  .page-faq .faq-entry {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-index {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-index__figure {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-group {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 44px;
    align-items: start;
    padding-top: 32px;
  }

  .page-faq .faq-group__head {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-item > summary {
    padding: 20px 24px;
    font-size: 17px;
  }

  .page-faq .faq-item__body {
    margin: 0 24px 22px;
    padding-left: 20px;
  }

  .page-faq .faq-item__body p {
    font-size: 16px;
    line-height: 1.9;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: 44px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-entry__item,
  .page-faq .faq-compare__col,
  .page-faq .faq-item,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after {
    transition: none;
  }
}
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