/* ===== 页面专属：.page-faq ===== */
.page-faq {
  --faq-green: #00A86B;
  --faq-blue: #0066FF;
  --faq-red: #FF3333;
  --faq-gold: #FFD700;
  --faq-dark: #000;
  --faq-white: #fff;
  --faq-midgray: #666;
  --faq-lightgray: #ccc;
}

/* ----- Hero / 首屏 ----- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--faq-dark);
  min-height: 280px;
  display: flex;
  align-items: center;
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  opacity: 0.35;
}

.page-faq .faq-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.85) 0%, rgba(0,168,107,0.25) 100%);
  pointer-events: none;
}

.page-faq .faq-hero__content {
  position: relative;
  z-index: 2;
  padding: 48px 20px 40px;
  color: var(--faq-white);
}

.page-faq .faq-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  margin-bottom: 20px;
  color: var(--faq-lightgray);
}

.page-faq .faq-breadcrumb a {
  color: var(--faq-green);
  text-decoration: none;
  transition: opacity 0.2s;
}

.page-faq .faq-breadcrumb a:hover {
  opacity: 0.7;
}

.page-faq .faq-breadcrumb__sep {
  color: var(--faq-midgray);
  font-size: 0.75rem;
}

.page-faq .faq-hero__title {
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  font-weight: 800;
  font-size: 2.4rem;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  color: var(--faq-white);
}

.page-faq .faq-hero__subtitle {
  font-family: 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  max-width: 600px;
  color: rgba(255,255,255,0.8);
  margin: 0;
}

/* ----- 双列布局 ----- */
.page-faq .faq-layout {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding: 40px 20px 60px;
}

/* ----- 侧边索引 ----- */
.page-faq .faq-index {
  order: -1;
  background: var(--faq-white);
  border-left: 4px solid var(--faq-green);
  padding: 24px 20px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.page-faq .faq-index__heading {
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  font-weight: 800;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--faq-midgray);
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--faq-lightgray);
}

.page-faq .faq-index__list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-index__link {
  display: block;
  padding: 10px 12px;
  font-family: 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--faq-dark);
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.2s, color 0.2s, padding-left 0.2s;
  position: relative;
}

.page-faq .faq-index__link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--faq-green);
  border-radius: 2px;
  transition: height 0.25s ease;
}

.page-faq .faq-index__link:hover {
  background: rgba(0,168,107,0.08);
  padding-left: 18px;
  color: var(--faq-green);
}

.page-faq .faq-index__link:hover::before {
  height: 60%;
}

.page-faq .faq-index__cta {
  padding-top: 16px;
  border-top: 1px solid var(--faq-lightgray);
}

.page-faq .faq-index__cta p {
  font-size: 0.85rem;
  color: var(--faq-midgray);
  margin: 0 0 8px;
}

.page-faq .faq-index__contact-link {
  display: inline-block;
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--faq-green);
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

.page-faq .faq-index__contact-link:hover {
  border-bottom-color: var(--faq-green);
  color: #008a55;
}

/* ----- 内容区 ----- */
.page-faq .faq-content {
  min-width: 0;
}

/* ----- 每个板块 ----- */
.page-faq .faq-section {
  margin-bottom: 48px;
}

.page-faq .faq-section:last-of-type {
  margin-bottom: 0;
}

.page-faq .faq-section__header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--faq-dark);
}

.page-faq .faq-section__icon {
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 8px;
  background: rgba(0,168,107,0.06);
  padding: 6px;
  flex-shrink: 0;
}

.page-faq .faq-section__title {
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--faq-dark);
  margin: 0;
}

/* ----- Accordion 项 ----- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-lightgray);
  transition: border-color 0.2s;
}

.page-faq .faq-item:first-of-type {
  border-top: 1px solid var(--faq-lightgray);
}

.page-faq .faq-item__trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 18px 12px;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--faq-dark);
  transition: background 0.2s, color 0.2s;
  position: relative;
}

.page-faq .faq-item__trigger:hover {
  background: rgba(0,168,107,0.04);
}

.page-faq .faq-item__marker {
  width: 10px;
  height: 10px;
  min-width: 10px;
  border-radius: 50%;
  background: var(--faq-green);
  flex-shrink: 0;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-faq .faq-item__trigger:hover .faq-item__marker {
  transform: scale(1.25);
  box-shadow: 0 0 0 4px rgba(0,168,107,0.15);
}

.page-faq .faq-item__question {
  flex: 1;
  line-height: 1.4;
}

.page-faq .faq-item__icon {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 1.2rem;
  color: var(--faq-green);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}

/* 展开状态 */
.page-faq .faq-item__trigger[aria-expanded="true"] .faq-item__icon {
  transform: rotate(45deg);
}

/* ----- 答案内容 ----- */
.page-faq .faq-item__content {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.45s ease, opacity 0.35s ease, padding 0.35s ease;
  padding: 0 12px;
  color: var(--faq-midgray);
  font-family: 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.95rem;
  line-height: 1.7;
}

.page-faq .faq-item__content[data-open="true"] {
  max-height: 800px;
  opacity: 1;
  padding: 0 12px 24px;
}

.page-faq .faq-item__content p {
  margin: 0 0 12px;
}

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

.page-faq .faq-item__content a {
  color: var(--faq-blue);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
}

.page-faq .faq-item__content a:hover {
  color: var(--faq-green);
}

/* ----- 列表样式 ----- */
.page-faq .faq-step-list,
.page-faq .faq-dot-list {
  padding-left: 20px;
  margin: 12px 0 0;
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-faq .faq-step-list {
  list-style: decimal;
}

.page-faq .faq-dot-list {
  list-style: disc;
}

.page-faq .faq-step-list li,
.page-faq .faq-dot-list li {
  margin-bottom: 6px;
}

.page-faq .faq-step-list li::marker {
  color: var(--faq-green);
  font-weight: 700;
}

.page-faq .faq-dot-list li::marker {
  color: var(--faq-green);
}

/* ----- 底部CTA ----- */
.page-faq .faq-footer-cta {
  margin-top: 48px;
  padding: 28px 24px;
  background: rgba(0,168,107,0.04);
  border-left: 4px solid var(--faq-green);
  text-align: center;
}

.page-faq .faq-footer-cta__text {
  font-size: 1rem;
  color: var(--faq-dark);
  margin: 0 0 12px;
  font-weight: 500;
}

.page-faq .faq-footer-cta__link {
  display: inline-block;
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--faq-white);
  background: var(--faq-green);
  padding: 12px 28px;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}

.page-faq .faq-footer-cta__link:hover {
  background: #008a55;
  transform: translateY(-2px);
}

/* ===== 响应式 ===== */
/* 移动端优先：以上为窄屏样式 */

/* 平板及以上：≥768px */
@media screen and (min-width: 768px) {
  .page-faq .faq-hero {
    min-height: 340px;
  }

  .page-faq .faq-hero__content {
    padding: 64px 40px 52px;
  }

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

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

  .page-faq .faq-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 48px;
    padding: 48px 40px 80px;
  }

  .page-faq .faq-index {
    order: 0;
    position: sticky;
    top: calc(64px + 24px);
    width: 240px;
    min-width: 200px;
    padding: 28px 24px;
  }

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

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

  .page-faq .faq-section__icon {
    width: 56px;
    height: 56px;
  }

  .page-faq .faq-item__trigger {
    padding: 20px 16px;
    font-size: 1.05rem;
  }

  .page-faq .faq-item__content {
    padding: 0 16px;
  }

  .page-faq .faq-item__content[data-open="true"] {
    padding: 0 16px 28px;
  }

  .page-faq .faq-footer-cta {
    padding: 36px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: left;
  }

  .page-faq .faq-footer-cta__text {
    margin: 0;
    font-size: 1.05rem;
  }
}

/* 桌面：≥1024px */
@media screen and (min-width: 1024px) {
  .page-faq .faq-hero {
    min-height: 400px;
  }

  .page-faq .faq-hero__title {
    font-size: 4rem;
  }

  .page-faq .faq-hero__subtitle {
    font-size: 1.2rem;
    max-width: 640px;
  }

  .page-faq .faq-layout {
    gap: 64px;
    padding: 56px 48px 100px;
  }

  .page-faq .faq-index {
    width: 280px;
    min-width: 240px;
    padding: 32px 28px;
  }

  .page-faq .faq-index__link {
    font-size: 1rem;
    padding: 12px 16px;
  }

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

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

/* 大屏：≥1280px */
@media screen and (min-width: 1280px) {
  .page-faq .faq-layout {
    padding: 64px 0 120px;
  }
}