.page-faq {
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 26px 0 38px;
  background:
    radial-gradient(120% 90% at 92% -10%, rgba(27, 91, 214, 0.16), transparent 62%),
    radial-gradient(80% 70% at 0% 100%, rgba(242, 160, 61, 0.14), transparent 58%),
    var(--paper);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-crumb {
  font-size: 13px;
  color: var(--ink-mute);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.page-faq .faq-crumb a {
  color: var(--brand);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 160ms var(--ease);
}

.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  border-bottom-color: var(--brand);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 24px;
  margin-top: 18px;
}

.page-faq .faq-hero__main h1 {
  font-size: clamp(27px, 6.2vw, 46px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 10px 0 0;
  font-weight: 800;
}

.page-faq .faq-lead {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-soft);
  max-width: 34em;
}

.page-faq .faq-facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 22px 0 0;
  padding: 0;
}

.page-faq .faq-facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-mute);
}

.page-faq .faq-facts .num {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: -0.01em;
}

.page-faq .faq-aside {
  position: relative;
  overflow: hidden;
  background: var(--night);
  color: var(--on-dark);
  border-radius: var(--radius-panel);
  padding: 24px 22px;
}

.page-faq .faq-aside::after {
  content: "";
  position: absolute;
  right: -48px;
  bottom: -64px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 2px dashed rgba(245, 247, 250, 0.18);
  pointer-events: none;
}

.page-faq .faq-aside__kicker {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-faq .faq-aside__text {
  margin: 10px 0 18px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--on-dark-soft);
}

.page-faq .faq-aside__link {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: 9px;
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  padding-top: 26px;
  padding-bottom: 64px;
}

.page-faq .faq-index {
  position: sticky;
  top: 64px;
  z-index: 5;
  background: var(--paper);
  padding: 8px 0 10px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-index__title {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

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

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 8px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-strong);
  background: var(--white);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 160ms var(--ease), color 160ms var(--ease), transform 160ms var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-color: var(--brand);
  color: var(--brand);
  transform: translateY(-1px);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--orange);
  background: rgba(255, 106, 43, 0.13);
  border-radius: var(--radius-pill);
  padding: 2px 7px;
}

/* ---------- 分组卡片 ---------- */
.page-faq .faq-group {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 22px 18px;
  margin-bottom: 20px;
  scroll-margin-top: 118px;
}

.page-faq .faq-group__head {
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line-strong);
}

.page-faq .faq-group__no {
  display: inline-block;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--white);
  background: var(--brand);
  border-radius: var(--radius-pill);
  padding: 3px 11px;
}

.page-faq .faq-group__head h2 {
  margin: 10px 0 0;
  font-size: clamp(20px, 3.6vw, 27px);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-faq .faq-group__lead {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink-soft);
  max-width: 40em;
}

/* ---------- 三步卡片 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 20px 0 4px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-step {
  background: var(--paper);
  border: 1px solid transparent;
  border-radius: var(--radius-card);
  padding: 18px 16px;
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}

.page-faq .faq-step:hover {
  border-color: var(--brand-soft);
  transform: translateY(-2px);
}

.page-faq .faq-step__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-step__title {
  margin: 10px 0 6px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
}

.page-faq .faq-step p:last-child {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--ink-soft);
}

/* ---------- 图片 ---------- */
.page-faq .faq-fig {
  margin: 18px 0 20px;
  border-radius: var(--radius-card);
  overflow: hidden;
}

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

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item:first-of-type {
  border-top: 0;
}

.page-faq .faq-item > summary {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  transition: color 160ms var(--ease);
}

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

.page-faq .faq-item > summary::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 2px solid var(--ink-mute);
  border-bottom: 2px solid var(--ink-mute);
  transform: rotate(45deg);
  transition: transform 200ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-item > summary:hover {
  color: var(--brand);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
  border-radius: 6px;
}

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

.page-faq .faq-item[open] > summary::after {
  transform: rotate(-135deg);
  border-color: var(--orange);
}

.page-faq .faq-answer {
  margin: 0 0 16px 2px;
  padding: 2px 0 0 15px;
  border-left: 3px solid var(--orange);
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-soft);
  animation: faq-in 220ms var(--ease) both;
}

.page-faq .faq-answer p {
  margin: 0 0 8px;
}

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

.page-faq .faq-answer ol {
  margin: 6px 0 8px;
  padding-left: 18px;
}

.page-faq .faq-answer li {
  margin-bottom: 6px;
}

.page-faq .faq-answer a {
  color: var(--brand);
  text-decoration: none;
  border-bottom: 1px solid rgba(27, 91, 214, 0.4);
}

.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  border-bottom-color: var(--brand);
}

@keyframes faq-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 路径胶囊 ---------- */
.page-faq .faq-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 10px;
  font-size: 13px;
}

.page-faq .faq-path span {
  background: rgba(27, 91, 214, 0.09);
  color: var(--brand);
  border-radius: var(--radius-pill);
  padding: 4px 11px;
  font-weight: 600;
}

.page-faq .faq-path i {
  font-style: normal;
  color: var(--ink-mute);
}

/* ---------- 深色联络组 ---------- */
.page-faq .faq-group--dark {
  background:
    radial-gradient(95% 80% at 100% 0%, rgba(27, 91, 214, 0.5), transparent 64%),
    radial-gradient(80% 60% at 0% 100%, rgba(14, 107, 92, 0.35), transparent 62%),
    var(--night);
  color: var(--on-dark);
  border-color: transparent;
}

.page-faq .faq-group--dark .faq-group__no {
  background: var(--orange);
  color: var(--night);
}

.page-faq .faq-group--dark .faq-group__head {
  border-bottom-color: rgba(245, 247, 250, 0.18);
}

.page-faq .faq-group--dark .faq-group__lead {
  color: var(--on-dark-soft);
}

.page-faq .faq-group--dark .faq-item {
  border-top-color: rgba(245, 247, 250, 0.16);
}

.page-faq .faq-group--dark .faq-item > summary {
  color: var(--on-dark);
}

.page-faq .faq-group--dark .faq-item > summary::after {
  border-color: rgba(245, 247, 250, 0.6);
}

.page-faq .faq-group--dark .faq-item[open] > summary,
.page-faq .faq-group--dark .faq-item > summary:hover {
  color: var(--amber);
}

.page-faq .faq-group--dark .faq-answer {
  color: var(--on-dark-soft);
}

.page-faq .faq-group--dark .faq-answer a {
  color: var(--amber);
  border-bottom-color: rgba(242, 160, 61, 0.5);
}

.page-faq .faq-channels {
  list-style: none;
  margin: 20px 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-channel {
  background: rgba(245, 247, 250, 0.07);
  border: 1px solid rgba(245, 247, 250, 0.16);
  border-radius: var(--radius-card);
  padding: 15px 16px;
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-channel:hover {
  border-color: rgba(242, 160, 61, 0.7);
  background: rgba(245, 247, 250, 0.11);
}

.page-faq .faq-channel__label {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--on-dark-soft);
}

.page-faq .faq-channel__value {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-faq .faq-channel__value--mail {
  font-family: var(--font-mono);
  font-size: 13.5px;
  word-break: break-all;
}

.page-faq .faq-channel__value.num {
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(245, 247, 250, 0.16);
}

.page-faq .faq-actions__link {
  font-size: 14px;
  font-weight: 600;
  color: var(--on-dark-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 247, 250, 0.35);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-actions__link:hover,
.page-faq .faq-actions__link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--orange);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-group {
    padding: 28px 26px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 780px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-item > summary {
    font-size: 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 34px 0 46px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
    gap: 40px;
    align-items: start;
    margin-top: 22px;
  }

  .page-faq .faq-aside {
    padding: 26px 24px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    display: grid;
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
    padding-top: 38px;
  }

  .page-faq .faq-index {
    top: 28px;
    margin-bottom: 0;
    padding: 0 0 0 16px;
    border-bottom: 0;
    border-left: 2px solid var(--line);
    background: transparent;
  }

  .page-faq .faq-index__title {
    margin-bottom: 12px;
    letter-spacing: 0.1em;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 3px;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-index__list a {
    width: 100%;
    justify-content: flex-start;
    border: 0;
    background: transparent;
    border-radius: 12px;
    padding: 9px 10px;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    background: var(--white);
    transform: none;
    box-shadow: inset 2px 0 0 var(--orange);
  }

  .page-faq .faq-group {
    padding: 32px 34px;
    margin-bottom: 24px;
    scroll-margin-top: 40px;
  }

  .page-faq .faq-fig {
    margin: 22px 0 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-answer {
    animation: none;
  }

  .page-faq .faq-item > summary::after,
  .page-faq .faq-step,
  .page-faq .faq-index__list a,
  .page-faq .faq-channel {
    transition: none;
  }

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