/* ===== FAQ 页面专属样式 ===== */
.page-faq {
  --faq-hero-bg: var(--color-bg-light, #F8F8F8);
  --faq-card-bg: #FFFFFF;
  --faq-border: #E0E0E0;
  --faq-toggle-hover: var(--color-secondary, #1E90FF);
  --faq-cta-bg: var(--color-bg-dark, #1A1A2E);
  --font-serif: Georgia, 'Times New Roman', serif;

  display: block;
  background: var(--faq-card-bg);
}

/* 面包屑 */
.page-faq .breadcrumb {
  padding-top: var(--space-md, 2rem);
  padding-bottom: var(--space-xs, 0.5rem);
  font-family: var(--font-body, 'Google Sans', Arial, sans-serif);
  font-size: 0.875rem;
  color: var(--color-text, #222222);
  opacity: 0.7;
}
.page-faq .breadcrumb a {
  color: var(--color-secondary, #1E90FF);
  text-decoration: none;
}
.page-faq .breadcrumb a:hover {
  text-decoration: underline;
}

/* ===== Hero 区 ===== */
.page-faq .faq-hero {
  background: var(--faq-hero-bg);
  padding: var(--space-md, 2rem) 0 var(--space-lg, 4rem);
  position: relative;
  overflow: hidden;
}
.page-faq .faq-hero::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 40px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 40'%3E%3Cpath d='M0,40 C200,10 400,30 600,15 C800,5 1000,25 1200,10 L1200,40 L0,40 Z' fill='%23FFFFFF'/%3E%3C/svg%3E") no-repeat bottom;
  background-size: 100% 40px;
}
.page-faq .faq-hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-sm, 1rem);
}
.page-faq .faq-hero__image {
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.page-faq .faq-hero__title {
  font-family: var(--font-heading, Impact, sans-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--color-primary, #CC2936);
  letter-spacing: 0.02em;
  margin: 0;
  line-height: 1.1;
  text-transform: uppercase;
}
.page-faq .faq-hero__desc {
  font-family: var(--font-body, 'Google Sans', Arial, sans-serif);
  font-size: 1.1rem;
  color: var(--color-text, #222222);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.6;
  opacity: 0.8;
}
.page-faq .faq-hero__search {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin-top: var(--space-xs, 0.5rem);
}
.page-faq .faq-hero__search-input {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.8rem;
  font-family: var(--font-body, 'Google Sans', Arial, sans-serif);
  font-size: 1rem;
  border: 2px solid var(--faq-border);
  border-radius: 40px;
  background: var(--faq-card-bg);
  color: var(--color-text, #222222);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  outline: none;
  box-sizing: border-box;
}
.page-faq .faq-hero__search-input:focus {
  border-color: var(--color-secondary, #1E90FF);
  box-shadow: 0 0 0 3px rgba(30, 144, 255, 0.15);
}
.page-faq .faq-hero__search-input::placeholder {
  color: #999;
  opacity: 1;
}
.page-faq .faq-hero__search-icon {
  position: absolute;
  top: 50%;
  left: 1rem;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  pointer-events: none;
  color: var(--color-secondary, #1E90FF);
}
.page-faq .faq-hero__search-icon::before {
  content: '';
  display: block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--color-secondary, #1E90FF);
  border-radius: 50%;
  position: absolute;
  top: 1px;
  left: 1px;
}
.page-faq .faq-hero__search-icon::after {
  content: '';
  display: block;
  width: 2px;
  height: 8px;
  background: var(--color-secondary, #1E90FF);
  position: absolute;
  bottom: 2px;
  right: 2px;
  transform: rotate(-45deg);
  border-radius: 1px;
}

/* ===== 分类区 ===== */
.page-faq .faq-categories {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg, 4rem);
  padding-top: var(--space-lg, 4rem);
  padding-bottom: var(--space-lg, 4rem);
}
.page-faq .faq-category {
  background: var(--faq-card-bg);
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04), 0 0 0 1px rgba(0,0,0,0.03);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}
.page-faq .faq-category:hover {
  box-shadow: 0 6px 28px rgba(0,0,0,0.07), 0 0 0 1px rgba(0,0,0,0.04);
}
.page-faq .faq-category__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 1rem);
  padding: var(--space-sm, 1rem) var(--space-md, 2rem);
  background: var(--color-primary, #CC2936);
  color: var(--color-text-light, #FFFFFF);
}
.page-faq .faq-category__icon {
  width: 60px;
  height: 60px;
  object-fit: contain;
  border-radius: 8px;
  flex-shrink: 0;
  background: rgba(255,255,255,0.15);
  padding: 4px;
  box-sizing: border-box;
}
.page-faq .faq-category__title {
  font-family: var(--font-heading, Impact, sans-serif);
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  letter-spacing: 0.03em;
  margin: 0;
  text-transform: uppercase;
  line-height: 1.2;
}
.page-faq .faq-category__items {
  padding: 0 var(--space-md, 2rem) var(--space-sm, 1rem);
}

/* ===== 问答面板 ===== */
.page-faq .panel {
  border-bottom: 1px solid var(--faq-border);
  padding: 0;
  transition: border-color 0.2s;
}
.page-faq .panel:last-child {
  border-bottom: none;
}
.page-faq .panel__toggle {
  display: block;
  width: 100%;
  padding: var(--space-sm, 1rem) 2.5rem var(--space-sm, 1rem) 0;
  font-family: var(--font-serif, Georgia, serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text, #222222);
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
  position: relative;
  line-height: 1.5;
  transition: color 0.2s ease;
  word-break: break-word;
}
.page-faq .panel__toggle::after {
  content: '+';
  position: absolute;
  right: 0.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-number, 'Courier New', monospace);
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--color-secondary, #1E90FF);
  transition: transform 0.3s ease, color 0.2s;
  line-height: 1;
}
.page-faq .panel--open .panel__toggle::after {
  content: '−';
  transform: translateY(-50%) rotate(0deg);
  color: var(--color-primary, #CC2936);
}
.page-faq .panel__toggle:hover {
  color: var(--color-secondary, #1E90FF);
}
.page-faq .panel__toggle:focus-visible {
  outline: 2px solid var(--color-secondary, #1E90FF);
  outline-offset: 2px;
  border-radius: 4px;
}
.page-faq .panel__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 0.5rem 0 0;
  color: var(--color-text, #222222);
  font-family: var(--font-body, 'Google Sans', Arial, sans-serif);
  font-size: 0.95rem;
  line-height: 1.7;
  opacity: 0.85;
  box-sizing: content-box;
}
.page-faq .panel--open .panel__content {
  max-height: 400px;
  padding: 0 0.5rem var(--space-sm, 1rem) 0;
}
.page-faq .panel__content p {
  margin: 0;
}
.page-faq .panel__content a {
  color: var(--color-secondary, #1E90FF);
  text-decoration: underline;
  font-weight: 500;
}
.page-faq .panel__content a:hover {
  color: var(--color-primary, #CC2936);
}

/* ===== CTA 区 ===== */
.page-faq .faq-cta {
  background: var(--faq-cta-bg);
  padding: var(--space-lg, 4rem) 0;
  text-align: center;
}
.page-faq .faq-cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm, 1rem);
}
.page-faq .faq-cta__title {
  font-family: var(--font-heading, Impact, sans-serif);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--color-text-light, #FFFFFF);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.page-faq .faq-cta__text {
  font-family: var(--font-body, 'Google Sans', Arial, sans-serif);
  font-size: 1.05rem;
  color: var(--color-text-light, #FFFFFF);
  opacity: 0.8;
  max-width: 420px;
  margin: 0;
  line-height: 1.6;
}
.page-faq .faq-cta .btn--primary {
  background: var(--color-primary, #CC2936);
  color: var(--color-text-light, #FFFFFF);
  padding: 0.7rem 2.2rem;
  border-radius: 40px;
  font-family: var(--font-body, 'Google Sans', Arial, sans-serif);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.2s ease;
  text-decoration: none;
  display: inline-block;
  margin-top: var(--space-xs, 0.5rem);
}
.page-faq .faq-cta .btn--primary:hover {
  background: #B02430;
  transform: translateY(-2px);
}

/* ===== 滚动动画 ===== */
.page-faq [data-scroll-fade] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.page-faq [data-scroll-fade].visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 辅助类 ===== */
.page-faq .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 767px) {
  .page-faq .faq-hero {
    padding: var(--space-md, 2rem) 0 var(--space-lg, 4rem);
  }
  .page-faq .faq-hero__image {
    width: 100%;
    max-width: 280px;
    height: auto;
  }
  .page-faq .faq-category__header {
    padding: var(--space-sm, 1rem) var(--space-sm, 1rem);
  }
  .page-faq .faq-category__items {
    padding: 0 var(--space-sm, 1rem) var(--space-sm, 1rem);
  }
  .page-faq .panel__toggle {
    font-size: 1rem;
    padding-right: 2.2rem;
  }
  .page-faq .faq-hero__search-input {
    font-size: 0.95rem;
    padding-left: 2.5rem;
  }
  .page-faq .faq-cta {
    padding: var(--space-md, 2rem) 0;
  }
  .page-faq .faq-categories {
    gap: var(--space-md, 2rem);
    padding-top: var(--space-md, 2rem);
    padding-bottom: var(--space-md, 2rem);
  }
}

@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: var(--space-lg, 4rem) 0 5rem;
  }
  .page-faq .faq-hero__title {
    font-size: 3.2rem;
  }
  .page-faq .faq-hero__desc {
    font-size: 1.2rem;
  }
  .page-faq .faq-category__header {
    padding: var(--space-md, 2rem) var(--space-lg, 4rem);
  }
  .page-faq .faq-category__items {
    padding: 0 var(--space-lg, 4rem) var(--space-sm, 1rem);
  }
  .page-faq .panel__toggle {
    font-size: 1.1rem;
    padding: 1.2rem 3rem 1.2rem 0;
  }
  .page-faq .panel__content {
    font-size: 1rem;
  }
  .page-faq .faq-categories {
    gap: var(--space-lg, 4rem);
    padding-top: var(--space-lg, 4rem);
    padding-bottom: var(--space-lg, 4rem);
  }
  .page-faq .faq-hero__image {
    width: 400px;
    height: 200px;
  }
}