/* ===== 帮助中心 /faqs/ —— 页面专属样式，全部限定在 .page-faq ===== */

.page-faq {
  --faq-rail: 236px;
  --faq-gap: 10px;
  display: block;
  background: var(--tb-paper-000);
  color: var(--tb-ink-800);
  font-family: var(--tb-font-sans);
}

.page-faq .tb-section {
  position: relative;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: 24px;
}

.page-faq .faq-crumb__sep {
  margin: 0 8px;
  color: var(--tb-line-300);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: 26px;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -150px;
  top: -130px;
  width: min(460px, 68vw);
  aspect-ratio: 1 / 1;
  background: var(--tb-patina-050);
  border-radius: 44% 56% 58% 42% / 54% 46% 54% 46%;
  transform: rotate(-14deg);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -110px;
  bottom: -140px;
  width: min(320px, 54vw);
  aspect-ratio: 1 / 1;
  background: var(--tb-gilt-100);
  opacity: 0.5;
  border-radius: 60% 40% 48% 52% / 44% 58% 42% 56%;
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-faq .faq-hero h1 {
  font-family: var(--tb-font-serif);
  font-weight: 900;
  font-size: clamp(29px, 5vw, 50px);
  line-height: 1.16;
  letter-spacing: 0.02em;
  color: var(--tb-indigo-900);
  margin: 14px 0 16px;
}

.page-faq .faq-hero__lead {
  font-size: 17px;
  line-height: 1.78;
  color: var(--tb-ink-800);
  max-width: 46ch;
  margin: 0 0 14px;
}

.page-faq .faq-hero__meta {
  font-family: var(--tb-font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--tb-patina-600);
  margin: 0 0 24px;
}

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

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

.page-faq .faq-hero__figure .tb-figure__frame {
  border: 1px solid var(--tb-patina-200);
  border-radius: var(--tb-radius-lg);
  background: var(--tb-patina-050);
  overflow: hidden;
  box-shadow: var(--tb-shadow);
}

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

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 34px;
}

.page-faq .faq-rail {
  background: var(--tb-patina-050);
  border: 1px solid var(--tb-patina-200);
  border-radius: var(--tb-radius-lg);
  padding: 20px 16px;
}

.page-faq .faq-rail__title {
  font-family: var(--tb-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--tb-patina-600);
  margin: 0;
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 3px;
}

.page-faq .faq-rail__list a {
  display: block;
  padding: 9px 12px;
  border-left: 2px solid transparent;
  border-radius: var(--tb-radius-sm);
  color: var(--tb-indigo-900);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  background: var(--tb-gilt-100);
  border-left-color: var(--tb-gilt-500);
  outline: none;
}

.page-faq .faq-rail__hint {
  margin: 14px 2px 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--tb-indigo-500);
}

/* ---------- 问题组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 140px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 52px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 10px;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--tb-patina-900);
}

.page-faq .faq-group__head h2 {
  font-family: var(--tb-font-serif);
  font-weight: 700;
  font-size: clamp(21px, 2.6vw, 27px);
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--tb-indigo-900);
  margin: 0;
}

.page-faq .faq-group__count {
  flex: none;
  font-family: var(--tb-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--tb-patina-600);
  white-space: nowrap;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  border: 1px solid var(--tb-patina-200);
  border-radius: var(--tb-radius-md);
  background: var(--tb-card-000);
  margin-bottom: var(--faq-gap);
  transition: border-color 0.22s ease, box-shadow 0.22s ease;
}

.page-faq .faq-item:hover {
  border-color: var(--tb-patina-600);
}

.page-faq .faq-item[open] {
  border-color: var(--tb-patina-600);
  box-shadow: var(--tb-shadow);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 18px 15px 24px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--tb-indigo-900);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 50%;
  width: 3px;
  height: 22px;
  border-radius: 2px;
  background: var(--tb-gilt-500);
  opacity: 0;
  transform: translateY(-50%) scaleY(0.3);
  transform-origin: center;
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.page-faq .faq-item[open] > .faq-item__q::before {
  opacity: 1;
  transform: translateY(-50%) scaleY(1);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__tag {
  flex: none;
  font-family: var(--tb-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--tb-orange-500);
  background: var(--tb-orange-050);
  border-radius: 999px;
  padding: 2px 8px;
}

.page-faq .faq-item__mark {
  flex: none;
  position: relative;
  width: 12px;
  height: 12px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--tb-patina-600);
  border-radius: 1px;
  transition: transform 0.22s ease, opacity 0.22s ease, background-color 0.22s ease;
}

.page-faq .faq-item__mark::before {
  left: 0;
  right: 0;
  top: 5.5px;
  height: 1.5px;
}

.page-faq .faq-item__mark::after {
  top: 0;
  bottom: 0;
  left: 5.5px;
  width: 1.5px;
}

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

.page-faq .faq-item[open] > .faq-item__q .faq-item__mark::before {
  background: var(--tb-gilt-500);
}

.page-faq .faq-item__a {
  padding: 0 22px 18px 24px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--tb-ink-800);
}

.page-faq .faq-item[open] > .faq-item__a {
  border-top: 1px dashed var(--tb-line-300);
  padding-top: 14px;
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  max-width: 66ch;
}

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

.page-faq .faq-item__a a {
  color: var(--tb-indigo-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 等宽编号步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 14px 0 12px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15px;
  line-height: 1.72;
  color: var(--tb-indigo-900);
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  flex: none;
  font-family: var(--tb-font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--tb-gilt-500);
  border: 1px solid var(--tb-gilt-500);
  border-radius: 4px;
  padding: 1px 6px;
  margin-top: 3px;
}

/* ---------- 转人工区块 ---------- */
.page-faq .faq-resolve {
  display: grid;
  gap: 24px;
  background: var(--tb-patina-050);
  border: 1px solid var(--tb-patina-200);
  border-radius: var(--tb-radius-lg);
  padding: 22px;
}

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

.page-faq .faq-resolve__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--tb-patina-200);
  border-radius: var(--tb-radius-md);
}

.page-faq .faq-resolve__body h3 {
  font-family: var(--tb-font-serif);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.44;
  letter-spacing: 0.02em;
  color: var(--tb-indigo-900);
  margin: 0 0 6px;
}

.page-faq .faq-resolve__body p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.78;
}

.page-faq .faq-resolve__contact {
  font-size: 14px;
  color: var(--tb-patina-600);
}

/* ---------- 延伸入口 ---------- */
.page-faq .faq-next {
  padding-bottom: 64px;
}

.page-faq .faq-next__grid {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}

.page-faq .faq-next__card {
  display: block;
  text-decoration: none;
  color: var(--tb-ink-800);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--tb-shadow);
  outline: none;
}

.page-faq .faq-next__card .tb-card__meta {
  font-family: var(--tb-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--tb-patina-600);
  margin: 0 0 6px;
}

.page-faq .faq-next__card .tb-card__title {
  font-family: var(--tb-font-serif);
  font-size: 19px;
  line-height: 1.4;
  color: var(--tb-indigo-900);
  margin: 0 0 8px;
}

.page-faq .faq-next__card p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-resolve {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    gap: 34px;
    padding: 28px;
    align-items: start;
  }

  .page-faq .faq-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 56px;
    align-items: center;
  }

  .page-faq .faq-hero__figure {
    align-self: end;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 132px;
  }

  .page-faq .faq-item__q {
    font-size: 16.5px;
  }
}

@media (max-width: 560px) {
  .page-faq .faq-item__q {
    flex-wrap: wrap;
    padding-right: 44px;
    font-size: 15.5px;
  }

  .page-faq .faq-item__mark {
    position: absolute;
    right: 18px;
    top: 22px;
  }

  .page-faq .faq-group__head {
    flex-wrap: wrap;
    gap: 6px;
  }

  .page-faq .faq-hero__actions .tb-btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
}