.page-faq {
  --faq-index-width: 16rem;
  --faq-transition: 0.28s var(--ease);
  --faq-radius-lg: 2rem;
  --faq-radius-md: 1.25rem;
  background: var(--paper);
}

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.page-faq .faq-hero__shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(7, 22, 49, 0.94) 8%, rgba(7, 22, 49, 0.74) 54%, rgba(10, 31, 68, 0.3) 100%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--header-h) + 1.5rem);
  padding-bottom: 3rem;
  min-height: 100%;
}

.page-faq .faq-breadcrumb-sep {
  color: rgba(255, 255, 255, 0.45);
  margin: 0 0.5rem;
}

.page-faq .breadcrumb {
  margin-bottom: 2rem;
}

.page-faq .breadcrumb__link,
.page-faq .breadcrumb__current {
  color: rgba(255, 255, 255, 0.85);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 0.6rem;
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5.6vw, 3.8rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__title-sub {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.56em;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.82);
}

.page-faq .faq-hero__lead {
  max-width: 42rem;
  margin: 1.1rem 0 0;
  font-size: 1.02rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.88);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero__service {
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.7);
}

.page-faq .faq-layout {
  display: grid;
  gap: 2rem;
  padding-top: 3rem;
  padding-bottom: 3.5rem;
}

.page-faq .faq-index {
  align-self: start;
  background: var(--white);
  border: 1px solid rgba(192, 192, 192, 0.5);
  border-radius: var(--faq-radius-lg);
  padding: 1.4rem 1.2rem;
}

.page-faq .faq-index__label {
  margin: 0 0 1rem;
  font-family: var(--font-data);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-index__nav {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  flex: 0 0 auto;
  padding: 0.55rem 0.8rem;
  border-radius: var(--radius-md);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  transition: background var(--faq-transition), color var(--faq-transition);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: rgba(255, 107, 53, 0.1);
  color: var(--orange);
}

.page-faq .faq-index__num {
  font-family: var(--font-data);
  font-size: 0.76rem;
  color: var(--orange);
  background: rgba(255, 107, 53, 0.1);
  padding: 0.2rem 0.45rem;
  border-radius: 999px;
  min-width: 2rem;
  text-align: center;
}

.page-faq .faq-index__note {
  margin: 1rem 0 0;
  padding-top: 1rem;
  border-top: 1px dashed rgba(192, 192, 192, 0.7);
  font-size: 0.82rem;
  color: var(--slate);
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.page-faq .faq-content {
  display: grid;
  gap: 3.5rem;
  min-width: 0;
}

.page-faq .faq-block {
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-faq .faq-block__header {
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-block__tag {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--orange);
  background: rgba(255, 107, 53, 0.1);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 0.6rem;
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.15rem);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.25;
}

.page-faq .faq-block__intro {
  margin: 0.55rem 0 0;
  max-width: 48rem;
  color: var(--slate);
  line-height: 1.65;
  font-size: 0.96rem;
}

.page-faq .faq-block:target .faq-block__header {
  animation: page-faq-flash 1.6s var(--ease);
}

@keyframes page-faq-flash {
  0%, 100% {
    background: transparent;
  }
  25%, 70% {
    background: rgba(255, 107, 53, 0.14);
  }
}

.page-faq .faq-list {
  display: grid;
  gap: 0.9rem;
}

.page-faq .faq-item {
  background: var(--white);
  border: 1px solid rgba(192, 192, 192, 0.45);
  border-left: 3px solid var(--silver);
  border-radius: var(--faq-radius-md);
  overflow: hidden;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
}

.page-faq .faq-item[open] {
  border-left: 3px solid var(--orange);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-item__question {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.05rem 1.2rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  transition: color var(--faq-transition);
}

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

.page-faq .faq-item__question::before {
  content: "";
  flex: 0 0 auto;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background: var(--silver);
  transition: background var(--faq-transition);
}

.page-faq .faq-item[open] .faq-item__question::before {
  background: var(--orange);
}

.page-faq .faq-item__question::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1;
  color: var(--slate);
  transition: color var(--faq-transition);
}

.page-faq .faq-item[open] .faq-item__question::after {
  content: "–";
  color: var(--orange);
}

.page-faq .faq-item__question:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
  border-radius: var(--faq-radius-md);
}

.page-faq .faq-item__answer {
  position: relative;
  padding: 0 1.2rem 1.3rem 2.5rem;
  color: var(--gray);
  line-height: 1.7;
  font-size: 0.95rem;
  cursor: copy;
}

.page-faq .faq-item__answer p {
  margin: 0 0 0.6rem;
}

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

.page-faq .faq-item__answer[data-copy]::after {
  content: "支持复制";
  display: inline-block;
  margin-top: 0.9rem;
  font-family: var(--font-data);
  font-size: 0.7rem;
  color: var(--slate);
  background: rgba(107, 122, 153, 0.08);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}

.page-faq .faq-steps {
  margin: 0.2rem 0 0.6rem;
  padding-left: 1.4rem;
}

.page-faq .faq-steps li {
  margin-bottom: 0.35rem;
}

.page-faq .faq-download-grid {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-download-media {
  margin: 0;
  align-self: start;
}

.page-faq .faq-download-media .media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-faq .faq-download-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  max-height: 420px;
  object-position: center 20%;
}

.page-faq .faq-download-media .media-frame__caption {
  margin-top: 0.6rem;
}

.page-faq .faq-contact {
  background: var(--ink);
  color: var(--white);
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-faq .faq-contact__inner {
  padding-top: 3rem;
  padding-bottom: 3rem;
  display: grid;
  gap: 1.75rem;
}

.page-faq .faq-contact__main {
  display: grid;
  gap: 1rem;
  justify-items: start;
}

.page-faq .faq-contact__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
}

.page-faq .faq-contact__intro {
  margin: 0;
  max-width: 44rem;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.7;
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
  width: 100%;
}

.page-faq .faq-contact__item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.25rem;
  display: grid;
  gap: 0.2rem;
}

.page-faq .faq-contact__label {
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.52);
}

.page-faq .faq-contact__value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  word-break: break-all;
}

.page-faq .faq-contact__value[data-copy] {
  cursor: copy;
}

.page-faq .faq-contact__value[data-copy]::after {
  content: "复制";
  display: inline-block;
  margin-left: 0.6rem;
  font-size: 0.7rem;
  font-family: var(--font-body);
  color: rgba(255, 255, 255, 0.78);
  background: rgba(255, 255, 255, 0.12);
  padding: 0.16rem 0.5rem;
  border-radius: 999px;
  vertical-align: 0.1rem;
}

.page-faq .faq-contact__note {
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.62);
}

.page-faq .faq-contact__trust {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.1rem;
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.78);
}

.page-faq .faq-contact__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-faq .faq-contact__quick a {
  color: var(--white);
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.4rem 0.95rem;
  border-radius: 999px;
  font-size: 0.86rem;
  transition: border-color var(--faq-transition), background var(--faq-transition);
}

.page-faq .faq-contact__quick a:hover,
.page-faq .faq-contact__quick a:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 107, 53, 0.12);
}

.page-faq .faq-contact__icp {
  margin: 0;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.4);
}

@media (min-width: 768px) {
  .page-faq .faq-contact__list {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-width) minmax(0, 1fr);
    gap: 3rem;
    padding-top: 3.5rem;
    padding-bottom: 4.5rem;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-faq .faq-index__nav {
    display: grid;
    gap: 0.3rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__link {
    padding: 0.65rem 0.75rem;
  }

  .page-faq .faq-download-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(240px, 0.7fr);
    align-items: start;
  }

  .page-faq .faq-download-media img {
    max-height: none;
    object-position: center top;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation: none !important;
    transition: none !important;
  }
}