.page-faq {
  --faq-border: 2px solid var(--blue-600);
  --faq-bg: var(--blue-800);
  --faq-sidebar-width: 220px;
  --faq-gap: 1.5rem;
  color: var(--white);
}

.page-faq .breadcrumb {
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.page-faq .breadcrumb li {
  font-size: 0.85rem;
  color: var(--slate);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--blue-600);
}

.page-faq .breadcrumb a {
  color: var(--slate);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--orange);
}

.page-faq .breadcrumb a[aria-current="page"] {
  color: var(--white);
}

.page-faq .faq-hero {
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
  border-bottom: var(--faq-border);
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: center;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--orange);
}

.page-faq .faq-hero-status .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.15);
}

.page-faq h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.02em;
  margin: 0 0 1rem;
  max-width: 16em;
}

.page-faq h1::after {
  content: "";
  display: block;
  width: 72px;
  height: 6px;
  margin-top: 0.75rem;
  background: var(--orange);
  clip-path: polygon(0 0, 100% 0, calc(100% - 18px) 100%, 18px 100%);
}

.page-faq .faq-hero-lead {
  max-width: 720px;
  margin: 0;
  color: var(--slate);
  font-size: 1.05rem;
  line-height: 1.7;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-faq .faq-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.page-faq .faq-search {
  background: var(--faq-bg);
  border: var(--faq-border);
  padding: 1rem;
}

.page-faq .faq-search-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-search-icon {
  color: var(--orange);
}

.page-faq .faq-search-input {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--blue-600);
  border-radius: 0;
  background: var(--blue-900);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out);
}

.page-faq .faq-search-input::placeholder {
  color: var(--slate);
  opacity: 0.65;
}

.page-faq .faq-search-input:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.12);
}

.page-faq .faq-index {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
}

.page-faq .faq-index-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.55rem 0.85rem;
  border: var(--faq-border);
  background: var(--blue-900);
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-out);
}

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

.page-faq .faq-index-link.is-spy-active {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--white);
}

.page-faq .faq-index-num {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--orange);
}

.page-faq .faq-index-link.is-spy-active .faq-index-num {
  color: var(--white);
}

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

.page-faq .faq-section {
  margin-bottom: 2.5rem;
}

.page-faq .faq-section .section-head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  border-bottom: 2px solid var(--blue-600);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
}

.page-faq .faq-section .section-head-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--orange);
  padding-top: 0.35rem;
}

.page-faq .faq-section h2 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
}

.page-faq .faq-section-intro {
  color: var(--slate);
  margin: 0 0 1.25rem;
}

.page-faq .faq-figure {
  margin: 1.5rem 0;
  border: var(--faq-border);
  background: var(--blue-800);
  padding: 0.75rem;
}

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

.page-faq .faq-figure figcaption {
  padding: 0.75rem 0.25rem 0.25rem;
  font-size: 0.85rem;
  color: var(--slate);
  font-family: var(--font-mono);
}

.page-faq .faq-group {
  border-top: 2px solid var(--blue-600);
}

.page-faq .faq-item {
  border: var(--faq-border);
  border-top: 0;
  background: var(--faq-bg);
  transition: background-color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}

.page-faq .faq-item[open] {
  background: var(--blue-700);
  border-color: var(--orange);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  background: rgba(255, 107, 53, 0.06);
}

.page-faq .faq-q {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--white);
}

.page-faq .faq-item[open] .faq-q {
  color: var(--orange);
}

.page-faq .faq-toggle {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--blue-600);
  color: var(--slate);
  transition: all var(--duration-fast) var(--ease-out);
}

.page-faq .faq-toggle svg {
  transition: transform var(--duration-base) var(--ease-out);
}

.page-faq .faq-item[open] .faq-toggle {
  color: var(--white);
  border-color: var(--orange);
}

.page-faq .faq-item[open] .faq-toggle svg {
  transform: rotate(180deg);
}

.page-faq .faq-a {
  padding: 0 1.25rem 1.25rem;
  color: var(--slate);
  line-height: 1.7;
  font-size: 0.95rem;
}

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

.page-faq .faq-a a {
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-faq .faq-contact-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-faq .faq-contact-card {
  border: 2px solid var(--blue-600);
  background: var(--blue-800);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  position: relative;
}

.page-faq .faq-contact-card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 74px;
  height: 6px;
  background: var(--orange);
  clip-path: polygon(0 0, 100% 0, calc(100% - 14px) 100%, 14px 100%);
}

.page-faq .faq-contact-card h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 1.25rem;
  color: var(--white);
}

.page-faq .faq-contact-list {
  display: grid;
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.page-faq .faq-contact-item {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--blue-600);
}

.page-faq .faq-contact-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-contact-value {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--white);
  word-break: break-all;
}

.page-faq .btn-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--blue-600);
  background: var(--blue-900);
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

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

.page-faq .btn-copy.is-copied {
  border-color: var(--green);
  color: var(--green);
}

.page-faq .btn-copy.is-copied .btn-copy-text {
  display: none;
}

.page-faq .btn-copy.is-copied::after {
  content: "已复制";
}

.page-faq .faq-contact-note {
  margin: 0 0 1.25rem;
  padding-left: 0.75rem;
  border-left: 3px solid var(--yellow);
  font-size: 0.85rem;
  color: var(--slate);
  line-height: 1.65;
}

.page-faq .btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-sidebar-width) minmax(0, 1fr);
    align-items: start;
    gap: 2.5rem;
  }

  .page-faq .faq-sidebar {
    position: sticky;
    top: 2rem;
    flex-direction: column;
    align-items: stretch;
  }

  .page-faq .faq-index {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: 0.35rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index-link {
    width: 100%;
    justify-content: flex-start;
    border: 0;
    border-left: 3px solid var(--blue-600);
    background: transparent;
    padding: 0.65rem 0.85rem;
  }

  .page-faq .faq-index-link.is-spy-active {
    border-left-color: var(--orange);
    background: rgba(255, 107, 53, 0.08);
    color: var(--white);
  }

  .page-faq .faq-index-link.is-spy-active .faq-index-num {
    color: var(--orange);
  }

  .page-faq .faq-contact-wrap {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.75fr);
    align-items: start;
  }

  .page-faq .faq-figure-contact {
    margin-top: 0;
  }
}