/* ===== 页面专属 CSS：.page-faq ===== */
.page-faq {
  --faq-gap: 1.5rem;
  --faq-section-gap: 3rem;
  --faq-card-radius: 0.75rem;
  --faq-border-width: 2px;
  --faq-transition: 0.3s ease;
  scroll-behavior: smooth;
  padding: 0 1rem 3rem;
  background: var(--color-primary-bg, #0B1E36);
  color: var(--color-text-primary, #FFFFFF);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
}

/* ===== 容器 ===== */
.page-faq .container {
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
  width: 100%;
}

/* ===== 框景首屏 ===== */
.page-faq .faq-hero {
  padding: 4rem 0 2rem;
}

.page-faq .faq-hero-frame {
  position: relative;
  padding: 1.5rem 1.5rem 1.25rem;
  border: var(--faq-border-width) solid var(--color-border, #2A4A6A);
  border-radius: var(--faq-card-radius);
  background: var(--color-card-bg, #132A45);
  overflow: hidden;
}

.page-faq .faq-hero-frame::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-primary-accent, #FF6B35);
  border-radius: 2px 0 0 2px;
}

.page-faq .faq-hero-frame::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary-accent, #FF6B35), var(--color-secondary-accent, #39FF14));
  border-radius: 0 var(--faq-card-radius) 0 0;
}

.page-faq .faq-breadcrumb {
  font-size: 0.8rem;
  color: var(--color-text-secondary, #B0BEC5);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
}

.page-faq .faq-hero-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  color: var(--color-text-primary, #FFFFFF);
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
  line-height: 1.1;
}

.page-faq .faq-hero-desc {
  font-size: clamp(0.95rem, 1.5vw, 1.15rem);
  color: var(--color-text-secondary, #B0BEC5);
  margin-bottom: 1.25rem;
  line-height: 1.5;
  max-width: 36em;
}

.page-faq .faq-hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 0.5rem;
  object-fit: cover;
  border: 1px solid var(--color-border, #2A4A6A);
}

/* ===== 布局：索引 + 内容 ===== */
.page-faq .faq-layout {
  display: flex;
  flex-direction: column;
  gap: var(--faq-section-gap);
  padding-top: 2rem;
}

/* ===== 快速索引 ===== */
.page-faq .faq-index {
  display: flex;
  gap: 0.6rem;
  overflow-x: auto;
  padding: 0.5rem 0 1rem;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border, #2A4A6A) transparent;
  flex-shrink: 0;
}

.page-faq .faq-index::-webkit-scrollbar {
  height: 4px;
}

.page-faq .faq-index::-webkit-scrollbar-thumb {
  background: var(--color-border, #2A4A6A);
  border-radius: 2px;
}

.page-faq .faq-index-item {
  flex-shrink: 0;
  padding: 0.5rem 1.2rem;
  border: var(--faq-border-width) solid var(--color-border, #2A4A6A);
  border-radius: 2rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary, #B0BEC5);
  background: transparent;
  text-decoration: none;
  transition: all var(--faq-transition);
  white-space: nowrap;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
}

.page-faq .faq-index-item:hover,
.page-faq .faq-index-item:focus-visible {
  border-color: var(--color-primary-accent, #FF6B35);
  color: var(--color-primary-accent, #FF6B35);
  outline: none;
}

.page-faq .faq-index-item:active {
  background: var(--color-primary-accent, #FF6B35);
  color: var(--color-primary-bg, #0B1E36);
  border-color: var(--color-primary-accent, #FF6B35);
}

/* ===== 问答内容区 ===== */
.page-faq .faq-content {
  display: flex;
  flex-direction: column;
  gap: var(--faq-section-gap);
  flex: 1;
  min-width: 0;
}

/* ===== 每个板块 ===== */
.page-faq .faq-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-faq .faq-section-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 800;
  color: var(--color-primary-accent, #FF6B35);
  letter-spacing: -0.01em;
  margin: 0 0 0.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-border, #2A4A6A);
  position: relative;
}

.page-faq .faq-section-title::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 3rem;
  height: 2px;
  background: var(--color-primary-accent, #FF6B35);
}

/* ===== 问答卡片（details/summary） ===== */
.page-faq .faq-card {
  border: var(--faq-border-width) solid var(--color-border, #2A4A6A);
  border-radius: var(--faq-card-radius);
  background: var(--color-card-bg, #132A45);
  overflow: hidden;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
  list-style: none;
}

.page-faq .faq-card[open] {
  border-color: var(--color-primary-accent, #FF6B35);
  box-shadow: 0 0 0 1px rgba(255, 107, 53, 0.15), 0 8px 24px rgba(0, 0, 0, 0.3);
}

.page-faq .faq-card::-webkit-details-marker,
.page-faq .faq-card::marker {
  display: none;
  content: '';
}

.page-faq .faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  user-select: none;
  list-style: none;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  transition: background var(--faq-transition);
}

.page-faq .faq-question::-webkit-details-marker,
.page-faq .faq-question::marker {
  display: none;
  content: '';
}

.page-faq .faq-question:hover {
  background: rgba(255, 107, 53, 0.06);
}

.page-faq .faq-question-text {
  font-size: clamp(0.95rem, 1.2vw, 1.05rem);
  font-weight: 600;
  color: var(--color-text-primary, #FFFFFF);
  line-height: 1.4;
  flex: 1;
}

.page-faq .faq-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  border: 2px solid var(--color-border, #2A4A6A);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-secondary, #B0BEC5);
  transition: all var(--faq-transition);
  line-height: 1;
}

.page-faq .faq-card[open] .faq-icon {
  transform: rotate(45deg);
  border-color: var(--color-primary-accent, #FF6B35);
  color: var(--color-primary-accent, #FF6B35);
}

.page-faq .faq-answer {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.95rem;
  color: var(--color-text-secondary, #B0BEC5);
  line-height: 1.7;
  border-top: 1px solid var(--color-border, #2A4A6A);
  padding-top: 1rem;
  margin-top: 0;
}

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

.page-faq .faq-answer p + p {
  margin-top: 0.75rem;
}

.page-faq .faq-link {
  color: var(--color-primary-accent, #FF6B35);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--faq-transition);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  border-bottom-color: var(--color-primary-accent, #FF6B35);
  outline: none;
}

/* ===== 联系客服专属卡片 ===== */
.page-faq .faq-section-contact {
  margin-top: 0.5rem;
}

.page-faq .faq-contact-card {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: var(--color-card-bg, #132A45);
  border: var(--faq-border-width) solid var(--color-border, #2A4A6A);
  border-radius: var(--faq-card-radius);
  padding: 1.5rem;
  transition: border-color var(--faq-transition);
}

.page-faq .faq-contact-card:hover {
  border-color: var(--color-primary-accent, #FF6B35);
}

.page-faq .faq-contact-img {
  display: block;
  width: 120px;
  max-width: 100%;
  height: auto;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-border, #2A4A6A);
  margin: 0 auto;
  transition: border-color var(--faq-transition);
}

.page-faq .faq-contact-card:hover .faq-contact-img {
  border-color: var(--color-primary-accent, #FF6B35);
}

.page-faq .faq-contact-info {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-faq .faq-contact-item {
  font-size: 0.95rem;
  color: var(--color-text-primary, #FFFFFF);
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.5rem;
}

.page-faq .faq-contact-label {
  font-weight: 600;
  color: var(--color-primary-accent, #FF6B35);
  min-width: 5em;
}

.page-faq .faq-contact-reasons {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-border, #2A4A6A);
}

.page-faq .faq-reasons-heading {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-primary, #FFFFFF);
  margin: 0 0 0.4rem;
}

.page-faq .faq-reasons-list {
  list-style: disc;
  margin: 0;
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.page-faq .faq-reasons-list li {
  font-size: 0.9rem;
  color: var(--color-text-secondary, #B0BEC5);
  line-height: 1.5;
}

.page-faq .faq-contact-cta {
  margin-top: 0.4rem;
  font-size: 0.9rem;
  color: var(--color-text-secondary, #B0BEC5);
}

/* ===== 桌面端布局 ===== */
@media (min-width: 768px) {
  .page-faq {
    padding: 0 2rem 4rem;
  }

  .page-faq .faq-hero {
    padding: 5rem 0 3rem;
  }

  .page-faq .faq-hero-frame {
    padding: 2rem 2.5rem 1.5rem;
  }

  .page-faq .faq-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 2.5rem;
    padding-top: 3rem;
  }

  .page-faq .faq-index {
    flex-direction: column;
    gap: 0.6rem;
    min-width: 10rem;
    max-width: 13rem;
    padding: 0.5rem 0 0;
    overflow-x: visible;
    position: sticky;
    top: 2rem;
  }

  .page-faq .faq-index-item {
    border-radius: 0.5rem;
    padding: 0.6rem 1rem;
    white-space: normal;
    font-size: 0.9rem;
    border-width: 1px;
  }

  .page-faq .faq-content {
    gap: calc(var(--faq-section-gap) * 1.2);
  }

  .page-faq .faq-section-title {
    font-size: 1.7rem;
  }

  .page-faq .faq-question {
    padding: 1.1rem 1.5rem;
  }

  .page-faq .faq-question-text {
    font-size: 1rem;
  }

  .page-faq .faq-answer {
    padding: 0 1.5rem 1.5rem;
    padding-top: 1rem;
  }

  .page-faq .faq-contact-card {
    flex-direction: row;
    align-items: flex-start;
    padding: 2rem;
    gap: 2rem;
  }

  .page-faq .faq-contact-img {
    width: 140px;
    margin: 0;
    flex-shrink: 0;
  }

  .page-faq .faq-contact-info {
    flex: 1;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero-title {
    font-size: 3.2rem;
  }

  .page-faq .faq-index {
    min-width: 12rem;
    max-width: 16rem;
    gap: 0.7rem;
  }

  .page-faq .faq-index-item {
    padding: 0.7rem 1.2rem;
    font-size: 0.95rem;
  }

  .page-faq .faq-section-title {
    font-size: 1.9rem;
  }

  .page-faq .faq-contact-img {
    width: 160px;
  }
}