.page-faq {
  --faq-grid-gap: 20px;
  --faq-card-radius: 8px;
  --faq-card-shadow: 0 2px 12px rgba(0,0,0,0.06);
  --faq-section-gap: 48px;
  --faq-bg-grid: #F8F9FA;

  background-color: var(--faq-bg-grid);
  background-image:
    linear-gradient(rgba(229,229,229,0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(229,229,229,0.5) 1px, transparent 1px);
  background-size: 28px 28px;
  min-height: 100vh;
  padding: 36px 0 56px;
}

/* ----- 容器 ----- */
.page-faq .page-container {
  max-width: var(--container-max, 1280px);
  margin: 0 auto;
  padding: 0 var(--container-pad, 24px);
}

/* ----- 英雄区 ----- */
.page-faq .faq-hero {
  text-align: center;
  margin-bottom: 44px;
  padding: 28px 0 20px;
}

.page-faq .faq-hero__title {
  font-family: var(--font-heading, 'Montserrat Black', sans-serif);
  font-size: 2.2rem;
  color: var(--color-red, #E63946);
  margin: 0 0 10px;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.page-faq .faq-hero__desc {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 1rem;
  color: var(--color-text, #2C3E50);
  max-width: 580px;
  margin: 0 auto 24px;
  line-height: 1.6;
}

/* ----- 搜索框 ----- */
.page-faq .faq-search {
  position: relative;
  max-width: 440px;
  margin: 0 auto;
}

.page-faq .faq-search__icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  color: var(--color-silver, #E5E5E5);
  pointer-events: none;
  font-weight: 700;
  line-height: 1;
}

.page-faq .faq-search__input {
  width: 100%;
  padding: 13px 18px 13px 46px;
  border: 2px solid var(--color-silver, #E5E5E5);
  border-radius: var(--radius-md, 8px);
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.95rem;
  background: #ffffff;
  color: var(--color-text, #2C3E50);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  outline: none;
  box-sizing: border-box;
}

.page-faq .faq-search__input::placeholder {
  color: #b0b8c4;
  opacity: 1;
}

.page-faq .faq-search__input:focus {
  border-color: var(--color-red, #E63946);
  box-shadow: 0 0 0 3px rgba(230,57,70,0.12);
}

/* ----- 版块标题 ----- */
.page-faq .faq-section {
  margin-bottom: var(--faq-section-gap, 48px);
}

.page-faq .section-title {
  font-family: var(--font-heading, 'Montserrat Black', sans-serif);
  font-size: 1.5rem;
  color: var(--color-blue, #1D3557);
  margin: 0 0 22px;
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.2;
}

.page-faq .section-title__num {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 1.1rem;
  color: var(--color-red, #E63946);
  opacity: 0.5;
  font-weight: 500;
}

/* ----- 网格（flex 实现自适应双列）----- */
.page-faq .faq-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--faq-grid-gap, 20px);
}

.page-faq .faq-card,
.page-faq .faq-image {
  flex: 1 1 100%;
  min-width: 0;
}

/* ----- 卡片 ----- */
.page-faq .faq-card {
  background: #ffffff;
  border-radius: var(--faq-card-radius, 8px);
  box-shadow: var(--faq-card-shadow, 0 2px 12px rgba(0,0,0,0.06));
  overflow: hidden;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.page-faq .faq-card:hover {
  box-shadow: var(--shadow-card, 0 4px 20px rgba(0,0,0,0.08));
  transform: translateY(-2px);
}

/* ----- details / summary ----- */
.page-faq .faq-details {
  display: block;
}

.page-faq .faq-question {
  padding: 16px 20px;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-red, #E63946);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.25s ease;
  user-select: none;
  line-height: 1.4;
}

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

.page-faq .faq-question::after {
  content: '+';
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--color-silver, #E5E5E5);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  margin-left: 14px;
  line-height: 1;
}

.page-faq .faq-details[open] .faq-question::after {
  transform: rotate(135deg);
  color: var(--color-red, #E63946);
}

.page-faq .faq-details[open] .faq-question {
  background-color: rgba(230,57,70,0.045);
}

.page-faq .faq-answer {
  padding: 0 20px 16px;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.925rem;
  color: var(--color-text, #2C3E50);
  line-height: 1.7;
  animation: faqFadeIn 0.3s ease both;
}

.page-faq .faq-answer p {
  margin: 0 0 6px;
}

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

@keyframes faqFadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ----- 图片 ----- */
.page-faq .faq-image {
  background: #ffffff;
  border-radius: var(--faq-card-radius, 8px);
  box-shadow: var(--faq-card-shadow, 0 2px 12px rgba(0,0,0,0.06));
  overflow: hidden;
  padding: 12px;
  margin: 0;
}

.page-faq .faq-image__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px;
  display: block;
  background: var(--color-silver, #E5E5E5);
}

.page-faq .faq-image__caption {
  margin: 8px 0 0;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.8rem;
  color: var(--color-text, #2C3E50);
  text-align: center;
  opacity: 0.65;
  line-height: 1.4;
}

/* ----- 延伸帮助 ----- */
.page-faq .faq-related {
  margin-top: 48px;
  padding: 28px 24px 32px;
  background: #ffffff;
  border-radius: var(--radius-lg, 12px);
  box-shadow: var(--shadow-card, 0 4px 20px rgba(0,0,0,0.08));
  text-align: center;
}

.page-faq .faq-related__title {
  font-family: var(--font-heading, 'Montserrat Black', sans-serif);
  font-size: 1.3rem;
  color: var(--color-blue, #1D3557);
  margin: 0 0 10px;
}

.page-faq .faq-related__desc {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.95rem;
  color: var(--color-text, #2C3E50);
  margin: 0 0 18px;
  line-height: 1.6;
}

.page-faq .faq-related__desc a {
  color: var(--color-red, #E63946);
  text-decoration: underline;
  transition: color 0.2s;
}

.page-faq .faq-related__desc a:hover {
  color: var(--color-gold, #F4A261);
}

.page-faq .faq-related__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* ----- 桌面断点 ≥768px ----- */
@media (min-width: 768px) {
  .page-faq {
    padding: 48px 0 72px;
  }

  .page-faq .faq-hero {
    padding: 36px 0 28px;
    margin-bottom: 52px;
  }

  .page-faq .faq-hero__title {
    font-size: 2.8rem;
  }

  .page-faq .faq-hero__desc {
    font-size: 1.1rem;
  }

  .page-faq .section-title {
    font-size: 1.7rem;
    margin-bottom: 24px;
  }

  .page-faq .section-title__num {
    font-size: 1.2rem;
  }

  .page-faq .faq-card,
  .page-faq .faq-image {
    flex: 1 1 calc(50% - 10px);
  }

  .page-faq .faq-question {
    padding: 18px 24px;
    font-size: 1.05rem;
  }

  .page-faq .faq-answer {
    padding: 0 24px 18px;
    font-size: 0.95rem;
  }

  .page-faq .faq-image {
    padding: 14px;
  }

  .page-faq .faq-related {
    padding: 36px 32px 40px;
  }

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

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

/* ----- 桌面宽屏 ≥1024px ----- */
@media (min-width: 1024px) {
  .page-faq {
    padding: 60px 0 88px;
  }

  .page-faq .faq-hero__title {
    font-size: 3.2rem;
  }

  .page-faq .faq-hero__desc {
    font-size: 1.15rem;
    max-width: 620px;
  }

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

  .page-faq .faq-card,
  .page-faq .faq-image {
    flex: 1 1 calc(50% - 10px);
  }

  .page-faq .faq-grid {
    gap: 24px;
  }

  .page-faq .faq-section {
    margin-bottom: 56px;
  }

  .page-faq .faq-related {
    margin-top: 56px;
    padding: 40px 40px 44px;
  }
}