/* ===== 常见问答 page-faq ===== */

.page-faq {
  --faq-line: var(--line);
  padding-bottom: 56px;
  color: var(--mid);
}

/* ---- 面包屑位 ---- */
.page-faq .crumbs {
  padding-top: 18px;
}

/* ---- 首屏 ---- */
.page-faq .faq-hero {
  display: grid;
  gap: 24px;
  padding: 18px 0 36px;
  border-bottom: 1px solid var(--faq-line);
}

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

.page-faq .faq-hero__text h1 {
  margin: 12px 0 0;
  font-size: clamp(30px, 7.4vw, 64px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--paper);
  overflow-wrap: break-word;
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--mid);
}

.page-faq .faq-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--ink-700);
  overflow: hidden;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 46%;
  background: linear-gradient(180deg, transparent, rgba(15, 15, 18, 0.85));
  pointer-events: none;
}

/* ---- 主体两栏 ---- */
.page-faq .faq-body {
  display: grid;
  gap: 32px;
  padding: 36px 0 0;
}

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

.page-faq .faq-intro {
  margin: 12px 0 22px;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--mid);
}

/* ---- 分类标签 ---- */
.page-faq .faq-tabs {
  min-width: 0;
}

.page-faq .faq-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  background: var(--ink-800);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  color: var(--mid);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-tab:hover {
  color: var(--paper);
  border-color: var(--dim);
}

.page-faq .faq-tab:focus-visible {
  outline: 2px solid var(--fox-soft);
  outline-offset: 2px;
}

.page-faq .faq-tab[aria-selected="true"] {
  color: var(--paper);
  background: var(--ink-700);
  border-color: var(--fox);
  box-shadow: inset 0 -2px 0 var(--fox);
}

.page-faq .faq-tab[data-tone="cyan"][aria-selected="true"] {
  border-color: var(--cyan);
  box-shadow: inset 0 -2px 0 var(--cyan);
}

.page-faq .faq-tab[data-tone="amber"][aria-selected="true"] {
  border-color: var(--amber);
  box-shadow: inset 0 -2px 0 var(--amber);
}

.page-faq .faq-tab[data-tone="violet"][aria-selected="true"] {
  border-color: var(--violet);
  box-shadow: inset 0 -2px 0 var(--violet);
}

.page-faq .faq-tab__num {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-tab[aria-selected="true"] .faq-tab__num {
  color: var(--paper-2);
}

/* ---- 问答面板 ---- */
.page-faq .faq-panel {
  min-width: 0;
  outline: none;
}

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

.page-faq .faq-panel__title {
  margin: 0 0 6px;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-panel__meta {
  margin: 0 0 16px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--dim);
}

.page-faq .faq-list {
  counter-reset: faqitem;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-list > li {
  counter-increment: faqitem;
  min-width: 0;
}

/* ---- 折叠条目 ---- */
.page-faq .faq-item {
  background: var(--ink-800);
  border: 1px solid var(--faq-line);
  border-left: 2px solid transparent;
  border-radius: var(--radius);
  transition: background 0.2s ease, border-color 0.2s ease;
}

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

.page-faq .faq-item[open] {
  background: var(--ink-700);
  border-color: var(--faq-line);
  border-left: 2px solid var(--fox);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 15px 16px;
  list-style: none;
  cursor: pointer;
  color: var(--paper);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  overflow-wrap: break-word;
}

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

.page-faq .faq-item__q::before {
  content: counter(faqitem, decimal-leading-zero);
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  line-height: 1.95;
  letter-spacing: 0.04em;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
}

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

.page-faq .faq-item__q::after {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-right: 2px solid var(--fox);
  border-bottom: 2px solid var(--fox);
  transform: rotate(45deg);
  transition: transform 0.2s ease, margin-top 0.2s ease;
}

.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(-135deg);
  margin-top: 10px;
}

.page-faq .faq-item__a {
  padding: 0 16px 16px 16px;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 46em;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--mid);
}

/* ---- 答案内的强调与跳转 ---- */
.page-faq .faq-hl {
  font-family: var(--mono);
  font-style: normal;
  font-weight: 600;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hl--cyan {
  color: var(--cyan);
}

.page-faq .faq-hl--violet {
  color: var(--violet);
}

.page-faq .faq-link {
  display: inline-block;
  margin-top: 10px;
  color: var(--fox);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 77, 28, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-link:hover {
  color: var(--fox-soft);
  border-bottom-color: var(--fox-soft);
}

/* ---- 面板内配图 ---- */
.page-faq .faq-panel__media {
  margin: 22px 0 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--ink-700);
  overflow: hidden;
}

.page-faq .faq-panel__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-panel__cap {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--faq-line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--dim);
}

/* ---- 侧边目录 ---- */
.page-faq .faq-side {
  min-width: 0;
}

.page-faq .faq-index {
  border: 1px solid var(--faq-line);
  background: var(--ink-700);
  border-radius: var(--radius);
  padding: 16px;
}

.page-faq .faq-index__label {
  margin: 0 0 12px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--dim);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  color: var(--mid);
  font-size: 13.5px;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--paper);
  background: var(--ink-800);
  border-left-color: var(--fox);
}

.page-faq .faq-index__name {
  min-width: 0;
  overflow-wrap: break-word;
}

.page-faq .faq-index__count {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-index__note {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--faq-line);
  font-size: 12px;
  line-height: 1.8;
  color: var(--dim);
}

/* ---- 底部求助区 ---- */
.page-faq .faq-help {
  margin: 44px 0 0;
  padding: 24px 20px 26px;
  border: 1px solid var(--faq-line);
  border-top: 3px solid var(--fox);
  border-radius: var(--radius);
  background:
    radial-gradient(130% 150% at 100% 0%, rgba(255, 77, 28, 0.16), transparent 62%),
    var(--ink-800);
}

.page-faq .faq-help__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 4.6vw, 30px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-help__text {
  margin: 12px 0 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mid);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
}

/* ---- 中等屏 ---- */
@media (min-width: 720px) {
  .page-faq .faq-tablist {
    gap: 10px;
  }

  .page-faq .faq-tab {
    padding: 10px 16px;
    font-size: 14.5px;
  }

  .page-faq .faq-item__q {
    padding: 16px 20px;
    font-size: 15.5px;
  }

  .page-faq .faq-item__a {
    padding: 0 20px 18px 20px;
  }

  .page-faq .faq-help {
    padding: 28px 26px 30px;
  }
}

/* ---- 桌面：非对称两栏 ---- */
@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: center;
    gap: 44px;
    padding: 40px 0 52px;
  }

  .page-faq .faq-hero__media {
    transform: translateY(-6px);
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 252px;
    gap: 48px;
    align-items: start;
    padding-top: 44px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 24px;
  }
}

/* ---- 无障碍动效降级 ---- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tab,
  .page-faq .faq-item,
  .page-faq .faq-item__q::after,
  .page-faq .faq-index__link,
  .page-faq .faq-link,
  .page-faq .faq-hero__media {
    transition: none;
    transform: none;
  }
}