/* ===== FAQ页面专属样式 ===== */
.page-faq {
  --faq-bg: #f4f7fc;
  --faq-muted: #7a89a9;
  --faq-border: rgba(10, 14, 39, 0.12);
  background: var(--faq-bg);
  color: var(--color-steel);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
}

/* 面包屑 */
.page-faq .faq-breadcrumbs {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 1rem var(--container-padding);
  font-size: 0.85rem;
  color: var(--color-mist);
}
.page-faq .faq-breadcrumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}
.page-faq .faq-breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--color-mist);
}
.page-faq .faq-breadcrumbs a {
  color: var(--color-navy);
  text-decoration: none;
  font-weight: 600;
}
.page-faq .faq-breadcrumbs a:hover {
  text-decoration: underline;
}
.page-faq .faq-breadcrumbs a[aria-current="page"] {
  color: var(--color-steel);
  font-weight: 700;
}

/* Hero */
.page-faq .faq-hero {
  position: relative;
  background: linear-gradient(180deg, #ffffff 0%, #eef2fb 100%);
  border-bottom: var(--border-thick) solid var(--color-navy);
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(45%, 30rem);
  height: 8px;
  background: linear-gradient(90deg, var(--color-orange) 0%, var(--color-purple) 100%);
}
.page-faq .faq-hero__inner {
  display: grid;
  gap: 2rem;
  padding-top: 2rem;
  padding-bottom: 3rem;
}
.page-faq .faq-hero__label {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-orange);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 3.5rem);
  line-height: 1.15;
  color: var(--color-navy);
  margin: 0 0 0.75rem;
  letter-spacing: 0.02em;
}
.page-faq .faq-hero__subtitle {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-navy-deep);
  margin-bottom: 1rem;
}
.page-faq .faq-hero__desc {
  color: var(--color-steel);
  max-width: 46em;
  margin-bottom: 1.75rem;
}
.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.page-faq .faq-hero__visual {
  border: var(--border-thick) solid var(--color-navy);
  box-shadow: var(--shadow-hard);
  background: var(--color-white);
}
.page-faq .faq-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
}

/* 分类索引 */
.page-faq .faq-index {
  padding: 1.25rem 0 1rem;
}
.page-faq .faq-index__tip {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--faq-muted);
  background: var(--color-white);
  border: 1px solid var(--faq-border);
  border-radius: 0.25rem;
  padding: 0.5rem 0.875rem;
  margin: 0 0 1rem;
}
.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}
.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--color-white);
  border: 2px solid var(--color-navy);
  border-radius: 0.25rem;
  padding: 0.75rem 0.875rem;
  text-decoration: none;
  color: var(--color-navy);
  font-weight: 700;
  box-shadow: 4px 4px 0 rgba(10, 14, 39, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.page-faq .faq-index__link:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(10, 14, 39, 0.12);
  background: #f8faff;
}
.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--color-orange);
  font-weight: 700;
  flex-shrink: 0;
}
.page-faq .faq-index__name {
  font-size: 0.95rem;
}

/* FAQ章节 */
.page-faq .faq-section {
  padding-top: 2.5rem;
  padding-bottom: 1.25rem;
}
.page-faq .faq-section__head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
  padding-bottom: 1rem;
  border-bottom: var(--border-thick) solid var(--color-navy);
}
.page-faq .faq-section__num {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-orange);
  background: var(--color-navy);
  width: 3rem;
  height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.25rem;
  flex-shrink: 0;
}
.page-faq .faq-section__title-group h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-navy);
  margin: 0;
  line-height: 1.2;
}
.page-faq .faq-section__title-group p {
  margin: 0.25rem 0 0;
  color: var(--faq-muted);
  font-size: 0.875rem;
}
.page-faq .faq-section__icon {
  margin-left: auto;
  color: var(--color-purple);
  flex-shrink: 0;
}

/* FAQ列表 */
.page-faq .faq-list {
  display: grid;
  gap: 0.875rem;
}
.page-faq .faq-item {
  background: var(--color-white);
  border: 2px solid var(--color-navy);
  border-radius: 0.25rem;
  box-shadow: 4px 4px 0 rgba(10, 14, 39, 0.08);
  overflow: hidden;
}
.page-faq .faq-item__summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  transition: background 0.2s ease;
}
.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__summary:hover {
  background: #f8faff;
}
.page-faq .faq-item__num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-purple);
  font-weight: 700;
  background: rgba(138, 43, 226, 0.08);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  flex-shrink: 0;
}
.page-faq .faq-item__title {
  flex: 1;
  font-weight: 700;
  color: var(--color-navy);
  font-size: 1rem;
}
.page-faq .faq-item__icon {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--color-orange);
  font-weight: 700;
  line-height: 1;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}
.page-faq .faq-item[open] .faq-item__icon {
  transform: rotate(45deg);
}
.page-faq .faq-item[open] .faq-item__summary {
  border-bottom: 2px solid var(--color-navy);
}
.page-faq .faq-item__body {
  padding: 1rem 1.25rem 1.25rem;
  color: var(--color-steel);
  font-size: 0.95rem;
  background: #fbfcff;
  overflow-wrap: break-word;
}
.page-faq .faq-item__body p {
  margin: 0;
}
.page-faq .faq-item__body a {
  color: var(--color-purple);
  font-weight: 600;
  text-decoration-thickness: 2px;
}
@keyframes page-faq-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}
.page-faq .faq-item[open] .faq-item__body {
  animation: page-faq-in 0.25s ease-out;
}

/* 联系支持 */
.page-faq .faq-contact {
  margin-top: 2.5rem;
  background: var(--gradient-blue-purple);
  color: var(--color-white);
  border-top: var(--border-thick) solid var(--color-navy);
}
.page-faq .faq-contact__inner {
  display: grid;
  gap: 2rem;
  padding-top: 3rem;
  padding-bottom: 3rem;
}
.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-orange);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.page-faq .faq-contact h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-white);
  margin: 0 0 0.75rem;
}
.page-faq .faq-contact__desc {
  color: #d9dff2;
  max-width: 44em;
  margin-bottom: 1.75rem;
}
.page-faq .faq-contact__cards {
  display: grid;
  gap: 1rem;
}
.page-faq .faq-contact__card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(184, 192, 217, 0.3);
  border-radius: 0.25rem;
  padding: 1rem 1.25rem;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 0.875rem;
  row-gap: 0.25rem;
  align-items: center;
}
.page-faq .faq-contact__card-icon {
  grid-row: 1 / 3;
  color: var(--color-orange);
}
.page-faq .faq-contact__card-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-mist);
}
.page-faq .faq-contact__card-value {
  font-weight: 700;
  color: var(--color-white);
  overflow-wrap: break-word;
}
.page-faq .faq-contact__card-note {
  grid-column: 2;
  font-size: 0.85rem;
  color: #c6cdf2;
}
.page-faq .faq-contact__more {
  margin-top: 1.25rem;
  font-size: 0.95rem;
  color: #d9dff2;
}
.page-faq .faq-contact__more a {
  color: var(--color-orange);
  font-weight: 700;
  text-decoration-thickness: 2px;
}
.page-faq .faq-contact__visual {
  border: var(--border-thick) solid var(--color-white);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.2);
}
.page-faq .faq-contact__visual img {
  display: block;
  width: 100%;
  height: auto;
}

/* 响应式 */
@media (min-width: 768px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(5, 1fr);
  }
  .page-faq .faq-hero__inner {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: 3rem;
    padding-top: 3rem;
    padding-bottom: 4rem;
  }
  .page-faq .faq-hero__visual {
    transform: rotate(1.5deg);
  }
  .page-faq .faq-section {
    padding-top: 4rem;
  }
  .page-faq .faq-section__head {
    gap: 1.5rem;
    margin-bottom: 2.25rem;
  }
  .page-faq .faq-section__num {
    width: 4rem;
    height: 4rem;
    font-size: 2.5rem;
  }
  .page-faq .faq-section__title-group h2 {
    font-size: 2rem;
  }
  .page-faq .faq-section__title-group p {
    font-size: 0.95rem;
  }
  .page-faq .faq-item__summary {
    padding: 1.25rem 1.5rem;
  }
  .page-faq .faq-item__title {
    font-size: 1.05rem;
  }
  .page-faq .faq-item__body {
    padding: 1.25rem 1.5rem 1.5rem;
    font-size: 1rem;
  }
  .page-faq .faq-contact__inner {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 3rem;
  }
  .page-faq .faq-contact__cards {
    grid-template-columns: 1fr;
  }
  .page-faq .faq-contact__visual {
    transform: rotate(-1.5deg);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-contact__cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-faq .faq-contact__card:last-child {
    grid-column: 1 / -1;
  }
}