/* =========================================================
   答疑中心 /answers/
   ========================================================= */

.page-faq .breadcrumbs {
  padding-top: 4px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: 30px;
  padding: 26px 0 52px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -160px;
  right: -10vw;
  left: 32%;
  bottom: 40%;
  pointer-events: none;
  background: linear-gradient(
    148deg,
    rgba(53, 224, 224, 0.17) 0%,
    rgba(53, 224, 224, 0.03) 56%,
    rgba(53, 224, 224, 0) 100%
  );
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 72%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -12vw;
  bottom: 12%;
  width: min(340px, 46vw);
  height: 210px;
  pointer-events: none;
  background: linear-gradient(
    118deg,
    rgba(255, 122, 61, 0.18),
    rgba(255, 122, 61, 0) 72%
  );
  clip-path: polygon(0 24%, 100% 0, 80% 100%, 0 100%);
}

.page-faq .faq-hero__text {
  position: relative;
  max-width: 640px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  max-width: 22ch;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 58ch;
}

.page-faq .faq-hero .tag-row {
  margin-top: 24px;
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  align-self: end;
}

.page-faq .faq-hero__figure .figure__frame {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0 var(--r-md) var(--r-md) var(--r-md);
  background: var(--ink-2);
}

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

/* ---------- 主体两栏 ---------- */

.page-faq .faq-body {
  display: grid;
  gap: 34px;
  padding-bottom: 72px;
}

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

/* ---------- 主题索引 ---------- */

.page-faq .faq-index {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-index__title {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__list li {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background: var(--ink-2);
  color: var(--stone);
  font-size: 0.88rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease),
    background var(--t-fast) var(--ease),
    transform var(--t-fast) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--cream);
  border-color: var(--line-cyan);
  background: rgba(53, 224, 224, 0.07);
  transform: translateY(-2px);
  outline: none;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-faq .faq-index__hint {
  margin: 0;
  padding: 14px 16px;
  border-left: 2px solid var(--cyan-dim);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(11, 18, 36, 0.62);
  color: var(--stone);
  font-size: 0.86rem;
  line-height: 1.72;
}

/* ---------- 问题分组 ---------- */

.page-faq .faq-group {
  scroll-margin-top: 88px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 52px;
  padding-top: 42px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-group__head {
  max-width: 650px;
}

.page-faq .faq-group__head h2 {
  margin: 10px 0 0;
}

.page-faq .faq-group__head .prose {
  margin-top: 14px;
  color: var(--stone);
}

.page-faq .faq-group__layout {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

.page-faq .faq-group__items {
  display: grid;
  gap: 12px;
  align-content: start;
  margin-top: 26px;
}

.page-faq .faq-group__layout .faq-group__items {
  margin-top: 0;
}

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

.page-faq .faq-group__figure .figure__frame {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md) 0 var(--r-md) var(--r-md);
  background: var(--ink-2);
}

/* ---------- 问答条目 ---------- */

.page-faq .faq-item {
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--line);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: var(--ink-2);
  transition: border-color var(--t-mid) var(--ease),
    background var(--t-mid) var(--ease),
    box-shadow var(--t-mid) var(--ease);
}

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

.page-faq .faq-item[open] {
  border-left-color: var(--cyan);
  background: var(--ink-3);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.3);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--cream);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--line-cyan);
  outline-offset: -2px;
}

.page-faq .faq-item[open] > summary {
  color: var(--cyan);
}

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

.page-faq .faq-item__toggle {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 4px;
  border: 1px solid var(--cyan-dim);
  border-radius: 2px;
  transition: border-color var(--t-fast) var(--ease),
    background var(--t-fast) var(--ease);
}

.page-faq .faq-item__toggle::before,
.page-faq .faq-item__toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
  transition: transform var(--t-fast) var(--ease),
    opacity var(--t-fast) var(--ease);
}

.page-faq .faq-item__toggle::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .faq-item__toggle::after {
  width: 1.5px;
  height: 10px;
}

.page-faq .faq-item[open] .faq-item__toggle {
  border-color: var(--cyan);
  background: rgba(53, 224, 224, 0.12);
}

.page-faq .faq-item[open] .faq-item__toggle::after {
  opacity: 0;
  transform: translate(-50%, -50%) scaleY(0.2);
}

.page-faq .faq-item__body {
  padding: 14px 18px 20px;
  border-top: 1px solid var(--line-soft);
  color: var(--stone);
  font-size: 0.95rem;
  line-height: 1.82;
}

.page-faq .faq-item__body p {
  margin: 0;
  max-width: 70ch;
}

.page-faq .faq-item__body p + p {
  margin-top: 10px;
}

.page-faq .faq-item__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
  transition: color var(--t-fast) var(--ease);
}

.page-faq .faq-item__body a:hover {
  color: var(--cream);
}

/* ---------- 工单信息清单 ---------- */

.page-faq .faq-checklist {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  max-width: 62ch;
}

.page-faq .faq-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 13px;
  border: 1px dashed var(--line);
  border-radius: var(--r-sm);
  background: rgba(11, 18, 36, 0.55);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.6;
}

.page-faq .faq-checklist li::before {
  content: "";
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  margin-top: 3px;
  border: 1px solid var(--cyan-dim);
  border-radius: 2px;
}

/* ---------- 人工协助 ---------- */

.page-faq .faq-cta {
  position: relative;
  overflow: hidden;
  margin-top: 54px;
  padding: 30px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-md) 0 var(--r-md) var(--r-md);
  background: linear-gradient(
    118deg,
    var(--ink-2) 0%,
    #101a31 56%,
    var(--ink) 100%
  );
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-faq .faq-cta::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 230px;
  height: 230px;
  pointer-events: none;
  background: radial-gradient(
    circle,
    rgba(255, 122, 61, 0.24),
    rgba(255, 122, 61, 0) 68%
  );
}

.page-faq .faq-cta__text {
  position: relative;
  max-width: 58ch;
}

.page-faq .faq-cta h2 {
  margin: 8px 0 0;
}

.page-faq .faq-cta p {
  margin: 12px 0 0;
  color: var(--stone);
}

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

/* ---------- 移动端加宽 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-hero {
    padding: 34px 0 64px;
    gap: 38px;
  }

  .page-faq .faq-body {
    padding-bottom: 96px;
  }

  .page-faq .faq-group + .faq-group {
    margin-top: 64px;
    padding-top: 52px;
  }

  .page-faq .faq-item > summary {
    padding: 20px 22px;
    font-size: 1.05rem;
  }

  .page-faq .faq-item__body {
    padding: 16px 22px 24px;
  }

  .page-faq .faq-cta {
    margin-top: 68px;
    padding: 38px 34px;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 26px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 48px;
  }

  .page-faq .faq-body {
    grid-template-columns: 212px minmax(0, 1fr);
    gap: 54px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 40px;
  }

  .page-faq .faq-index__list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-index__list li {
    flex: none;
  }

  .page-faq .faq-index__link {
    border: none;
    border-left: 2px solid var(--line);
    border-radius: 0;
    background: transparent;
    padding: 11px 12px 11px 16px;
    white-space: normal;
    transform: none;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    transform: none;
    color: var(--cream);
    border-left-color: var(--cyan);
    background: rgba(53, 224, 224, 0.06);
  }
}

@media (min-width: 1160px) {
  .page-faq .faq-group__layout {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
    gap: 28px;
  }
}

/* ---------- 减少动态效果 ---------- */

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

  .page-faq .faq-index__link:hover {
    transform: none;
  }
}