/* ===== 帮助中心 · 页面专属样式 ===== */

.page-faq .faq-hero-wrap {
  padding-top: 22px;
}

.page-faq .breadcrumb {
  margin-bottom: 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-faq .breadcrumb__item {
  color: var(--blue);
  text-decoration: none;
}

.page-faq .breadcrumb__item[aria-current="page"] {
  color: var(--mute);
}

.page-faq .breadcrumb__sep {
  color: var(--mute);
}

.page-faq .faq-hero {
  display: grid;
  gap: 30px;
}

.page-faq .faq-hero__lead h1 {
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1.28;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 10px 0 16px;
}

.page-faq .faq-hero__lead .prose {
  margin: 0 0 24px;
}

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

.page-faq .faq-hero__aside {
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: 2px;
}

.page-faq .faq-hero__aside .eyebrow {
  display: block;
  margin: 0 0 14px;
}

.page-faq .faq-hero__aside .index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-hero__aside .index-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.6;
}

.page-faq .faq-hero__aside .index-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-hero__aside .index-item__key {
  color: var(--mute);
  flex: 0 0 auto;
}

.page-faq .faq-hero__aside .index-item__val {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink);
  text-align: right;
  word-break: break-word;
}

/* ---------- 小节标题 ---------- */

.page-faq .faq-head {
  margin-bottom: 24px;
}

.page-faq .faq-head h2 {
  font-family: var(--serif);
  font-size: 25px;
  line-height: 1.3;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-faq .faq-head .prose {
  margin: 0;
}

/* ---------- 分类标签 ---------- */

.page-faq .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.page-faq .tab {
  appearance: none;
  border: 1px solid var(--line-strong);
  background: var(--white);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.4;
  padding: 10px 16px;
  border-radius: 2px;
  cursor: pointer;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.page-faq .tab[aria-selected="true"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
  transform: translateX(2px);
}

.page-faq .tabpanel[hidden] {
  display: none;
}

.page-faq .tabpanel:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}

/* ---------- 短问答 ---------- */

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

.page-faq .qa-short__item {
  background: var(--white);
  border-left: 3px solid var(--moss);
  padding: 15px 18px;
  box-shadow: var(--shadow);
}

.page-faq .qa-short__q {
  margin: 0 0 7px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .qa-short__a {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
  opacity: 0.86;
}

.page-faq .qa-short__exit {
  margin: 18px 0 0;
}

/* ---------- 图片 ---------- */

.page-faq .faq-figure {
  margin: 32px 0 0;
}

.page-faq .faq-figure .figure__media {
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
  overflow: hidden;
}

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

.page-faq .faq-figure .figure__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 长问答 ---------- */

.page-faq .faq-cols {
  display: grid;
  gap: 30px;
}

.page-faq .faq-cols--spaced {
  margin-top: 44px;
}

.page-faq .faq-deep h3 {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 6px;
}

.page-faq .faq-deep__hint {
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--mute);
}

.page-faq .fold {
  border-top: 1px solid var(--line);
}

.page-faq .fold:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-faq .fold__head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  padding: 15px 0;
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  transition: color 160ms ease;
}

.page-faq .fold__head:hover {
  color: var(--blue);
}

.page-faq .fold__head:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}

.page-faq .fold__icon {
  flex: 0 0 auto;
  width: 0;
  height: 0;
  margin-top: 7px;
  border-left: 8px solid var(--seal);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  transition: transform 160ms ease;
}

.page-faq .fold__head[aria-expanded="true"] .fold__icon,
.page-faq .fold[data-open="true"] .fold__icon,
.page-faq .fold.is-open .fold__icon {
  transform: rotate(90deg);
}

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

.page-faq .fold__inner {
  border-left: 2px solid var(--moss);
  margin-left: 3px;
  padding: 2px 0 18px 18px;
}

.page-faq .fold__inner p {
  margin: 0 0 9px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

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

.page-faq .qa-tip {
  background: var(--white);
  border: 1px solid var(--moss);
  padding: 12px 15px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 人工通道 ---------- */

.page-faq .faq-human {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: 30px 22px;
  display: grid;
  gap: 28px;
  border-radius: 2px;
}

.page-faq .faq-human__text .eyebrow {
  display: block;
  margin: 0 0 12px;
  color: var(--orange);
}

.page-faq .faq-human__text h2 {
  font-family: var(--serif);
  font-size: 25px;
  line-height: 1.3;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0 0 14px;
}

.page-faq .faq-human__text p {
  margin: 0 0 20px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 233, 210, 0.8);
}

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

.page-faq .faq-human__ghost {
  border-color: rgba(244, 233, 210, 0.5);
  color: var(--paper);
}

.page-faq .faq-human__info {
  margin: 0;
  display: grid;
  gap: 16px;
  border-top: 1px solid var(--dark-line);
  padding-top: 22px;
}

.page-faq .faq-human__info dt {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--moss);
  margin-bottom: 5px;
}

.page-faq .faq-human__info dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-human__pixel {
  position: absolute;
  right: 64px;
  bottom: 14px;
  width: 9px;
  height: 9px;
  background: var(--seal);
  box-shadow: 9px 0 0 var(--seal), 0 -9px 0 var(--seal), 9px -9px 0 var(--seal);
  opacity: 0.75;
  pointer-events: none;
}

/* ===== 平板与桌面 ===== */

@media (min-width: 768px) {
  .page-faq .qa-short {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-hero__lead h1 {
    font-size: 38px;
  }

  .page-faq .faq-human {
    padding: 38px 34px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-hero__lead h1 {
    font-size: 46px;
  }

  .page-faq .faq-hero__aside {
    margin-top: 26px;
  }

  .page-faq .faq-head h2 {
    font-size: 31px;
  }

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

  .page-faq .faq-cols--reverse {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-faq .faq-figure--sticky {
    position: sticky;
    top: 92px;
    margin-top: 0;
  }

  .page-faq .faq-human {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    padding: 48px 44px;
  }

  .page-faq .faq-human__info {
    border-top: 0;
    border-left: 1px solid var(--dark-line);
    padding-top: 0;
    padding-left: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tab,
  .page-faq .fold__icon,
  .page-faq .fold__head {
    transition: none;
  }

  .page-faq .tab[aria-selected="true"] {
    transform: none;
  }
}