.page-faq {
  --faq-line-faint: rgba(143, 166, 194, 0.14);
  --faq-line-soft: rgba(143, 166, 194, 0.26);
  --faq-amber-wash: rgba(242, 169, 59, 0.10);
  --faq-celadon-wash: rgba(79, 168, 139, 0.12);
  --faq-panel: rgba(19, 41, 75, 0.62);
}

.page-faq .breadcrumb {
  margin: 22px 0 0;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding: 32px 0 52px;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -180px;
  right: -220px;
  width: 640px;
  height: 640px;
  background: radial-gradient(circle at 55% 45%, rgba(242, 169, 59, 0.15), rgba(79, 168, 139, 0.09) 45%, transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero__in {
  position: relative;
  display: grid;
  gap: 34px;
  align-items: center;
}

.page-faq .faq-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-faq .faq-hero__code {
  padding: 3px 9px;
  border: 1px solid rgba(242, 169, 59, 0.42);
  border-radius: 2px;
  color: var(--amber);
  letter-spacing: 0.1em;
}

.page-faq .faq-hero h1 {
  margin: 20px 0 0;
  font-family: var(--font-display);
  font-size: clamp(31px, 6vw, 54px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__stat {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 30px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid var(--faq-line-faint);
}

.page-faq .faq-hero__stat li {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-faq .faq-hero__stat strong {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.6vw, 30px);
  font-weight: 800;
  line-height: 1;
  color: var(--paper);
}

.page-faq .faq-hero__stat span {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

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

.page-faq .faq-hero__figure .figure__media {
  border: 1px solid var(--faq-line-soft);
  background: linear-gradient(150deg, rgba(19, 41, 75, 0.92), rgba(11, 27, 46, 0.42));
}

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

/* 主体两栏 */
.page-faq .faq-body {
  padding-bottom: 8px;
}

.page-faq .faq-body__in {
  display: grid;
  gap: 30px;
  padding-top: 38px;
  border-top: 1px solid var(--faq-line-faint);
}

/* 左侧分类索引 */
.page-faq .faq-index {
  align-self: start;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

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

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

.page-faq .faq-index__list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px 9px 10px;
  border: 1px solid var(--faq-line-soft);
  border-radius: 2px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--paper);
  border-color: var(--amber);
  background: var(--faq-amber-wash);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-index__note a {
  color: var(--celadon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 分组 */
.page-faq .faq-group {
  scroll-margin-top: 112px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 54px;
}

.page-faq .faq-group .section-head {
  margin-bottom: 18px;
  padding-left: 16px;
  border-left: 3px solid var(--amber);
}

.page-faq .faq-group .section-head__desc {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* 问答条目 */
.page-faq .faq-list {
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-item {
  position: relative;
  border-bottom: 1px solid var(--faq-line-soft);
  transition: background-color 180ms ease;
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, var(--faq-panel), rgba(11, 27, 46, 0.14));
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 14px 18px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: transparent;
  transition: background-color 180ms ease, top 180ms ease, bottom 180ms ease;
}

.page-faq .faq-item[open] > .faq-item__q::before {
  top: 10px;
  bottom: 10px;
  background: var(--amber);
}

.page-faq .faq-item__q::after {
  content: "+";
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.2;
  color: var(--mist);
  transform: rotate(0deg);
  transition: transform 220ms ease, color 180ms ease;
}

.page-faq .faq-item[open] > .faq-item__q::after {
  transform: rotate(45deg);
  color: var(--amber);
}

.page-faq .faq-item__q:hover::after {
  color: var(--amber);
}

.page-faq .faq-q {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
  transition: color 180ms ease;
}

.page-faq .faq-item__body {
  padding: 0 18px 22px;
}

.page-faq .faq-item__body p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-item__body a {
  color: var(--celadon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-k {
  display: inline-block;
  padding: 0 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  color: var(--celadon);
  background: var(--faq-celadon-wash);
  border: 1px solid rgba(79, 168, 139, 0.34);
  border-radius: 2px;
}

/* 企业章节配图 */
.page-faq .faq-figure {
  margin: 26px 0 0;
}

.page-faq .faq-figure .figure__media {
  border: 1px solid var(--faq-line-soft);
  background: linear-gradient(140deg, rgba(19, 41, 75, 0.9), rgba(11, 27, 46, 0.4));
}

/* 人工协助 */
.page-faq .faq-help {
  padding: 56px 0 72px;
}

.page-faq .faq-help__in {
  display: grid;
  gap: 26px;
  padding: 26px 22px;
  border: 1px solid var(--faq-line-soft);
  border-left: 3px solid var(--celadon);
  background: linear-gradient(140deg, rgba(19, 41, 75, 0.86), rgba(11, 27, 46, 0.5));
}

.page-faq .faq-help__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3.4vw, 30px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-help__text-p {
  margin: 14px 0 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-help__ways {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-help__ways li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--faq-line-faint);
}

.page-faq .faq-help__ways li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-help__label {
  min-width: 76px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-faq .faq-help__value {
  flex: 1 1 180px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
  word-break: break-word;
}

/* 中等屏幕 */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    padding: 44px 0 62px;
  }

  .page-faq .faq-item__q {
    padding: 22px 18px 22px 22px;
  }

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

  .page-faq .faq-index__note {
    max-width: 68ch;
  }

  .page-faq .faq-help__in {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    padding: 34px 30px;
  }
}

/* 桌面端：左侧固定索引 + 右侧问答组 */
@media (min-width: 980px) {
  .page-faq .faq-hero__in {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 56px;
  }

  .page-faq .faq-body__in {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 56px;
    padding-top: 48px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 118px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list a {
    white-space: normal;
    padding: 13px 4px 13px 0;
    border: 0;
    border-bottom: 1px solid var(--faq-line-faint);
    border-radius: 0;
    font-size: 15px;
    background: transparent;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    background: transparent;
    border-bottom-color: var(--amber);
    color: var(--paper);
  }

  .page-faq .faq-index__num {
    font-size: 13px;
  }

  .page-faq .faq-help {
    padding: 64px 0 88px;
  }

  .page-faq .faq-help__in {
    padding: 42px 46px;
    gap: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__q::before,
  .page-faq .faq-item__q::after,
  .page-faq .faq-q,
  .page-faq .faq-index__list a {
    transition: none;
  }

  .page-faq .faq-item[open] > .faq-item__q::after {
    transform: none;
  }
}