.page-faq {
  --faq-bg: #f0f2f5;
  --faq-card-bg: #ffffff;
  --faq-border-color: rgba(255, 102, 0, 0.25);
  --faq-icon-size: 36px;
  --faq-radius-card: 20px;
  --faq-radius-icon: 50%;
  --faq-transition-answer: 0.35s ease;
  background: var(--faq-bg);
  min-height: 60vh;
  padding: 1.5rem 0 3rem;
}

.page-faq .container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.page-faq .breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--color-primary-variant);
  text-decoration: underline;
}

.page-faq .breadcrumb-sep {
  color: var(--color-text-secondary);
  user-select: none;
}

/* Hero 区 */
.page-faq .faq-hero {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
  margin-bottom: 2.5rem;
  background: var(--color-secondary);
  border-radius: var(--faq-radius-card);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(255, 102, 0, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-hero-text {
  flex: 1;
  position: relative;
  z-index: 1;
}

.page-faq .faq-title {
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 1.75rem;
  line-height: 1.25;
  color: var(--color-text-on-dark);
  margin: 0 0 0.5rem;
  letter-spacing: -0.01em;
}

.page-faq .faq-subtitle {
  font-family: var(--font-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0;
}

.page-faq .faq-subtitle a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.page-faq .faq-subtitle a:hover,
.page-faq .faq-subtitle a:focus-visible {
  color: var(--color-primary);
  text-decoration: underline;
}

.page-faq .faq-hero-image {
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 300px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-hero-image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
}

/* 问题列表 */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

/* 单个手风琴项 */
.page-faq .faq-item {
  background: var(--faq-card-bg);
  border-radius: var(--faq-radius-card);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--faq-border-color);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
  overflow: hidden;
}

.page-faq .faq-item[open] {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--transition-fast);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--color-text-on-light);
  position: relative;
}

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

.page-faq .faq-question:hover {
  background: rgba(255, 102, 0, 0.04);
}

.page-faq .faq-question:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
  border-radius: var(--faq-radius-card) var(--faq-radius-card) 0 0;
}

.page-faq .faq-item[open] .faq-question {
  background: rgba(255, 102, 0, 0.06);
  border-bottom: 1px solid var(--faq-border-color);
}

/* 图标 */
.page-faq .faq-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--faq-icon-size);
  height: var(--faq-icon-size);
  border-radius: var(--faq-radius-icon);
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-secondary);
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1;
  flex-shrink: 0;
  transition: transform var(--transition-base), background var(--transition-base);
}

.page-faq .faq-item[open] .faq-icon {
  transform: rotate(15deg) scale(1.08);
  background: var(--color-primary-variant);
}

.page-faq .faq-question-text {
  flex: 1;
}

/* 答案区域 */
.page-faq .faq-answer {
  padding: 0 1.25rem 1.25rem;
  font-family: var(--font-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-on-light);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.35s ease, padding 0.35s ease;
}

.page-faq .faq-item[open] .faq-answer {
  max-height: 500px;
  opacity: 1;
  padding-top: 1rem;
  padding-bottom: 1.25rem;
}

.page-faq .faq-answer p {
  margin: 0 0 0.5rem;
}

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

.page-faq .faq-answer a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  color: var(--color-primary-variant);
  text-decoration: underline;
}

/* 底部CTA区 */
.page-faq .faq-cta {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: var(--color-secondary);
  border-radius: var(--faq-radius-card);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-cta::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.10) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-cta-content {
  position: relative;
  z-index: 1;
}

.page-faq .faq-cta-title {
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 1.3rem;
  line-height: 1.3;
  color: var(--color-text-on-dark);
  margin: 0 0 0.5rem;
}

.page-faq .faq-cta-desc {
  font-family: var(--font-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0 0 1rem;
}

.page-faq .faq-cta .btn-primary {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.75rem;
  border-radius: var(--radius-capsule);
  text-decoration: none;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: 0 4px 14px rgba(255, 102, 0, 0.35);
}

.page-faq .faq-cta .btn-primary:hover,
.page-faq .faq-cta .btn-primary:focus-visible {
  background: var(--color-primary-variant);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 102, 0, 0.45);
}

.page-faq .faq-cta-image {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 500px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-cta-image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
}

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

  .page-faq .container {
    padding: 0 2rem;
  }

  .page-faq .breadcrumb {
    font-size: 0.9rem;
    margin-bottom: 2rem;
  }

  .page-faq .faq-hero {
    flex-direction: row;
    align-items: center;
    padding: 2rem 2.5rem;
    gap: 2.5rem;
    margin-bottom: 3rem;
  }

  .page-faq .faq-hero::before {
    top: -30%;
    right: -10%;
    width: 360px;
    height: 360px;
  }

  .page-faq .faq-title {
    font-size: 2.25rem;
  }

  .page-faq .faq-subtitle {
    font-size: 1.05rem;
  }

  .page-faq .faq-hero-image {
    max-width: 280px;
  }

  .page-faq .faq-list {
    gap: 1rem;
    margin-bottom: 3rem;
  }

  .page-faq .faq-question {
    padding: 1.15rem 1.5rem;
    font-size: 1.1rem;
  }

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

  .page-faq .faq-item[open] .faq-answer {
    padding-top: 1.15rem;
    padding-bottom: 1.5rem;
  }

  .page-faq .faq-cta {
    flex-direction: row;
    text-align: left;
    padding: 2rem 2.5rem;
    gap: 2rem;
    justify-content: space-between;
  }

  .page-faq .faq-cta-content {
    flex: 1;
  }

  .page-faq .faq-cta-title {
    font-size: 1.5rem;
  }

  .page-faq .faq-cta-desc {
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
  }

  .page-faq .faq-cta-image {
    flex-shrink: 0;
    max-width: 420px;
  }

  .page-faq .faq-cta .btn-primary {
    font-size: 1rem;
    padding: 0.7rem 2rem;
  }
}

/* ===== 大桌面端 (min-width: 1024px) ===== */
@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: 2.5rem 3rem;
  }

  .page-faq .faq-title {
    font-size: 2.5rem;
  }

  .page-faq .faq-hero-image {
    max-width: 300px;
  }

  .page-faq .faq-list {
    gap: 1.1rem;
  }

  .page-faq .faq-cta {
    padding: 2.5rem 3rem;
  }
}