/* ===== 问答中心 / questions ===== */

.page-faq {
  background: var(--ink-900);
  color: var(--white);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 40px) 0 0;
  background:
    radial-gradient(120% 78% at 82% -12%, rgba(43, 231, 210, 0.16), transparent 58%),
    radial-gradient(90% 62% at 4% 4%, rgba(59, 91, 255, 0.16), transparent 64%),
    var(--ink-900);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__anchor {
  position: absolute;
  top: calc(var(--header-h) + 4px);
  right: 3vw;
  z-index: 0;
  font-family: var(--font-mono);
  font-size: clamp(88px, 17vw, 210px);
  line-height: 0.8;
  letter-spacing: -0.05em;
  color: rgba(43, 231, 210, 0.08);
  -webkit-text-stroke: 1px rgba(43, 231, 210, 0.22);
  pointer-events: none;
  user-select: none;
}

.page-faq .faq-hero .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  font-size: 13px;
}

.page-faq .faq-hero .breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--mist);
}

.page-faq .faq-hero .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: var(--graphite);
}

.page-faq .faq-hero .breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-hero .breadcrumb__link:hover,
.page-faq .faq-hero .breadcrumb__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-hero .breadcrumb__current {
  color: var(--white);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 62px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.025em;
  animation: faqRise 0.7s var(--ease) both;
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 22px 0 0;
  color: var(--mist);
  font-size: 17px;
  line-height: 1.8;
  animation: faqRise 0.7s var(--ease) 0.08s both;
}

.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  animation: faqRise 0.7s var(--ease) 0.16s both;
}

.page-faq .faq-hero__chip {
  padding: 7px 14px;
  border: 1px solid var(--graphite);
  border-radius: 999px;
  background: rgba(16, 31, 51, 0.7);
  color: var(--mist);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__figure {
  margin: 46px 0 0;
  border-top: 1px solid var(--graphite);
}

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

@keyframes faqRise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 分组导航条 ---------- */
.page-faq .faq-jump {
  position: sticky;
  top: var(--header-h-scrolled);
  z-index: 20;
  border-bottom: 1px solid var(--graphite);
  background: rgba(16, 31, 51, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.page-faq .faq-jump__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 10px 0;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

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

.page-faq .faq-jump__item {
  flex: 0 0 auto;
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 15px;
  border: 1px solid var(--graphite);
  border-radius: 999px;
  color: var(--mist);
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.25s var(--ease), background-color 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.page-faq .faq-jump__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  transition: color 0.25s var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-jump__link:hover .faq-jump__num,
.page-faq .faq-jump__link:focus-visible .faq-jump__num {
  color: var(--ink-900);
}

/* ---------- 分组区块 ---------- */
.page-faq .faq-group {
  --grp: var(--cyan);
  padding: 60px 0 64px;
  scroll-margin-top: calc(var(--header-h-scrolled) + 66px);
}

.page-faq .faq-group + .faq-group {
  border-top: 1px solid var(--graphite);
}

.page-faq #faq-channel {
  --grp: var(--orange);
  background: var(--ink-800);
}

.page-faq #faq-desktop {
  --grp: var(--amber);
}

.page-faq #faq-account {
  --grp: var(--indigo);
  background: var(--ink-800);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 30px;
}

.page-faq .faq-group__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(38px, 7vw, 60px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--grp);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-faq .faq-group__note {
  margin: 10px 0 0;
  max-width: 56ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 收藏步骤 ---------- */
.page-faq .faq-steps-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-faq .faq-steps__caption {
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--mist);
  padding-left: 12px;
  border-left: 3px solid var(--grp);
}

.page-faq .faq-steps {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--graphite);
  border-radius: var(--radius-md);
  background: var(--ink-800);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-faq #faq-channel .faq-steps__item,
.page-faq #faq-account .faq-steps__item {
  background: var(--ink-900);
}

.page-faq .faq-steps__item:hover {
  border-color: var(--grp);
  transform: translateY(-3px);
}

.page-faq .faq-steps__num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--grp);
}

.page-faq .faq-steps__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

.page-faq .faq-steps__body p {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-steps__figure {
  margin: 0;
  border: 1px solid var(--graphite);
  border-radius: var(--radius-lg);
  background: var(--ink-800);
  overflow: hidden;
}

.page-faq #faq-channel .faq-steps__figure,
.page-faq #faq-account .faq-steps__figure {
  background: var(--ink-900);
}

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

.page-faq .faq-steps__caption-text {
  padding: 14px 18px 18px;
  color: var(--mist);
  font-size: 13px;
  line-height: 1.7;
  border-top: 1px solid var(--graphite);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin-top: 34px;
}

.page-faq .faq-steps-layout + .faq-list {
  margin-top: 38px;
}

.page-faq .faq-item {
  border: 1px solid var(--graphite);
  border-left: 3px solid var(--graphite);
  border-radius: var(--radius-md);
  background: var(--ink-800);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-faq #faq-channel .faq-item,
.page-faq #faq-account .faq-item {
  background: var(--ink-900);
}

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

.page-faq .faq-item[open] {
  border-left-color: var(--grp);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  margin: 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--white);
  transition: color 0.25s var(--ease);
}

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--grp);
}

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 1.5px solid var(--mist);
  border-radius: 50%;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  background: var(--mist);
  transition: transform 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-faq .faq-item__mark::before {
  width: 9px;
  height: 1.5px;
}

.page-faq .faq-item__mark::after {
  width: 1.5px;
  height: 9px;
}

.page-faq .faq-item[open] .faq-item__mark {
  border-color: var(--grp);
  transform: rotate(180deg);
}

.page-faq .faq-item[open] .faq-item__mark::before,
.page-faq .faq-item[open] .faq-item__mark::after {
  background: var(--grp);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: scaleY(0);
}

.page-faq .faq-item__a {
  padding: 0 20px 20px 54px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-item__a p {
  margin: 0;
}

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 231, 210, 0.45);
  transition: border-color 0.25s var(--ease);
}

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

.page-faq .faq-group__foot {
  margin: 26px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--grp);
  color: var(--mist);
  font-size: 14px;
  line-height: 1.75;
}

.page-faq .faq-group__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 231, 210, 0.45);
}

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

/* ---------- 兜底联系区块 ---------- */
.page-faq .faq-help {
  padding: 68px 0 84px;
  border-top: 1px solid var(--graphite);
  background:
    radial-gradient(90% 100% at 10% 0%, rgba(255, 122, 47, 0.16), transparent 62%),
    radial-gradient(80% 100% at 88% 100%, rgba(43, 231, 210, 0.12), transparent 66%),
    var(--ink-900);
}

.page-faq .faq-help__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 40px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-help__lead {
  max-width: 58ch;
  margin: 16px 0 0;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 34px;
}

.page-faq .faq-help__card {
  padding: 24px 22px;
  border: 1px solid var(--graphite);
  border-radius: var(--radius-lg);
  background: var(--ink-800);
}

.page-faq .faq-help__card--action {
  border-color: rgba(43, 231, 210, 0.4);
  background: linear-gradient(165deg, rgba(43, 231, 210, 0.12), rgba(16, 31, 51, 0.9) 58%);
}

.page-faq .faq-help__card-title {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

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

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 20px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--orange);
  transform: rotate(45deg);
}

.page-faq .faq-help__card-text {
  margin: 0 0 20px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.75;
}

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

.page-faq .faq-help__actions .btn {
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-group {
    padding: 76px 0 80px;
  }

  .page-faq .faq-group__head {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 4px 24px;
    align-items: start;
    margin-bottom: 38px;
  }

  .page-faq .faq-group__index {
    padding-top: 6px;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 20px;
  }

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

  .page-faq .faq-item__q {
    padding: 20px 24px;
  }

  .page-faq .faq-item__a {
    padding: 0 24px 24px 62px;
  }
}

@media (min-width: 992px) {
  .page-faq .faq-steps-layout {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    gap: 32px;
    align-items: start;
  }

  .page-faq .faq-steps__figure {
    position: sticky;
    top: calc(var(--header-h-scrolled) + 86px);
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero {
    padding-top: calc(var(--header-h) + 56px);
  }

  .page-faq .faq-hero__figure {
    margin-top: 58px;
  }

  .page-faq .faq-hero__figure img {
    max-height: 460px;
  }

  .page-faq .faq-help {
    padding: 88px 0 104px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__title,
  .page-faq .faq-hero__lead,
  .page-faq .faq-hero__chips {
    animation: none;
  }

  .page-faq .faq-steps__item,
  .page-faq .faq-item,
  .page-faq .faq-item__mark {
    transition: none;
  }

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

  .page-faq .faq-item[open] .faq-item__mark {
    transform: none;
  }
}
<<<END>>>