/* ===== 页面专属：FAQ ===== */
.page-faq {
  --faq-hero-bg: var(--color-primary, #0A3D62);
  --faq-hero-text: #ffffff;
  --faq-card-bg: #ffffff;
  --faq-card-border: var(--color-data, #00BFA5);
  --faq-card-shadow: 0 4px 20px rgba(10, 61, 98, 0.08);
  --faq-answer-bg: var(--color-light-bg, #F5F5F5);
  --faq-icon-color: var(--color-data, #00BFA5);
  --faq-accent: var(--color-accent, #FF6F00);
  --faq-cat-bg: rgba(255, 255, 255, 0.15);
  --faq-cat-active: var(--color-accent, #FF6F00);
  --faq-cta-bg: linear-gradient(135deg, var(--color-accent, #FF6F00) 0%, var(--color-accent-light, #FF9100) 100%);
  --faq-transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Hero 区 ===== */
.faq-hero {
  background: var(--faq-hero-bg);
  color: var(--faq-hero-text);
  position: relative;
  overflow: hidden;
  padding: 3rem 0 2.5rem;
}
.faq-hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.faq-hero-decor {
  position: absolute;
  top: -40%;
  right: -20%;
  width: 60%;
  height: 180%;
  background: rgba(255, 255, 255, 0.04);
  transform: rotate(18deg);
  pointer-events: none;
  z-index: 0;
}
.faq-hero-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  font-style: italic;
  letter-spacing: var(--letter-spacing-heading);
  line-height: 1.1;
  margin: 0;
}
.faq-hero-desc {
  font-size: 1.05rem;
  line-height: 1.5;
  opacity: 0.85;
  max-width: 600px;
  margin: 0;
}
.faq-search-wrap {
  position: relative;
  max-width: 480px;
  width: 100%;
}
.faq-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--faq-hero-text);
  opacity: 0.6;
  pointer-events: none;
  width: 20px;
  height: 20px;
}
.faq-search-input {
  display: block;
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 3rem;
  border: none;
  border-radius: 48px;
  background: rgba(255, 255, 255, 0.18);
  color: var(--faq-hero-text);
  font-family: var(--font-body);
  font-size: 1rem;
  backdrop-filter: blur(4px);
  transition: background var(--faq-transition), box-shadow var(--faq-transition);
  box-sizing: border-box;
}
.faq-search-input::placeholder {
  color: rgba(255, 255, 255, 0.55);
}
.faq-search-input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.28);
  box-shadow: 0 0 0 3px rgba(255, 111, 0, 0.4);
}

/* ===== 分类胶囊 ===== */
.faq-category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding-top: 0.5rem;
}
.faq-cat-link {
  display: inline-block;
  padding: 0.45rem 1.2rem;
  border-radius: 32px;
  background: var(--faq-cat-bg);
  color: var(--faq-hero-text);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: background var(--faq-transition), color var(--faq-transition), transform var(--faq-transition);
  border: 1px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
}
.faq-cat-link:hover,
.faq-cat-link:focus-visible {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}
.faq-cat-link.is-active {
  background: var(--faq-cat-active);
  border-color: var(--faq-cat-active);
  color: #fff;
}

/* ===== 问题列表主体 ===== */
.faq-body {
  padding: 2.5rem 0 1rem;
  background: var(--color-light-bg, #F5F5F5);
}

/* ===== 每个分类 ===== */
.faq-section {
  margin-bottom: 2.5rem;
}
.faq-section:last-of-type {
  margin-bottom: 0;
}
.faq-section-title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  font-style: italic;
  letter-spacing: var(--letter-spacing-heading);
  color: var(--color-primary, #0A3D62);
  margin: 0 0 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--faq-card-border);
  display: inline-block;
}

/* ===== 网格 ===== */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.faq-grid-usage {
  gap: 1rem;
}

/* ===== 问题卡片 ===== */
.faq-card {
  background: var(--faq-card-bg);
  border-radius: 12px;
  box-shadow: var(--faq-card-shadow);
  overflow: hidden;
  border-left: 4px solid var(--faq-card-border);
  transition: box-shadow var(--faq-transition), transform var(--faq-transition);
  position: relative;
}
.faq-card:hover {
  box-shadow: 0 8px 32px rgba(10, 61, 98, 0.12);
  transform: translateY(-2px);
}

/* toggle input 隐藏 */
.faq-toggle-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}

/* 问题标题行 */
.faq-question {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.1rem 1.25rem;
  cursor: pointer;
  user-select: none;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-black, #1B1B1B);
  line-height: 1.4;
  transition: background var(--faq-transition);
  margin: 0;
}
.faq-question:hover {
  background: rgba(0, 191, 165, 0.04);
}
.faq-q-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--faq-icon-color);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1;
}
.faq-q-text {
  flex: 1;
  min-width: 0;
}
.faq-q-arrow {
  flex-shrink: 0;
  color: var(--color-gray-text, #B0BEC5);
  transition: transform var(--faq-transition);
  display: flex;
  align-items: center;
}
.faq-q-arrow svg {
  display: block;
}

/* checkbox 选中时箭头旋转 */
.faq-toggle-input:checked ~ .faq-question .faq-q-arrow {
  transform: rotate(180deg);
}

/* 答案区域 */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--faq-answer-bg);
}
.faq-toggle-input:checked ~ .faq-answer {
  max-height: 800px;
}
.faq-answer-inner {
  padding: 0 1.25rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-black, #1B1B1B);
}
.faq-answer-inner p {
  margin: 0.5rem 0;
}
.faq-answer-inner p:first-child {
  margin-top: 0;
}
.faq-answer-inner strong {
  color: var(--color-primary, #0A3D62);
  font-weight: 700;
}

/* 内联链接 */
.faq-inline-link {
  color: var(--faq-accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--faq-transition);
}
.faq-inline-link:hover {
  color: var(--color-accent-light, #FF9100);
}

/* 联系方式高亮 */
.faq-contact-phone {
  font-family: var(--font-mono);
  font-size: 1.05em;
  letter-spacing: 0.02em;
}

/* ===== 带图片的卡片 ===== */
.faq-answer-flex {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.faq-answer-text {
  flex: 1;
}
.faq-answer-img-wrap {
  flex-shrink: 0;
  text-align: center;
}
.faq-answer-img {
  display: inline-block;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  object-fit: cover;
}
.faq-answer-img-wide {
  max-height: 200px;
  width: auto;
}

/* ===== CTA 引导区 ===== */
.faq-cta {
  background: var(--faq-cta-bg);
  color: #fff;
  padding: 2.5rem 0;
  text-align: center;
}
.faq-cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
.faq-cta-title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  font-style: italic;
  letter-spacing: var(--letter-spacing-heading);
  margin: 0;
}
.faq-cta-desc {
  font-size: 1.05rem;
  opacity: 0.9;
  margin: 0;
}
.faq-cta-btn {
  margin-top: 0.5rem;
  background: #fff;
  color: var(--faq-accent);
  border: 2px solid #fff;
  padding: 0.75rem 2rem;
  border-radius: 48px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  display: inline-block;
  transition: background var(--faq-transition), color var(--faq-transition), transform var(--faq-transition);
}
.faq-cta-btn:hover {
  background: transparent;
  color: #fff;
  transform: translateY(-2px);
}

/* ===== 响应式：平板及以上 ===== */
@media (min-width: 640px) {
  .faq-hero {
    padding: 4rem 0 3rem;
  }
  .faq-hero-title {
    font-size: 3.2rem;
  }
  .faq-hero-desc {
    font-size: 1.15rem;
  }
  .faq-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }
  .faq-grid-usage {
    grid-template-columns: 1fr 1fr;
  }
  .faq-card-image {
    grid-column: span 1;
  }
  .faq-answer-flex {
    flex-direction: row;
    align-items: flex-start;
  }
  .faq-answer-flex-reverse {
    flex-direction: row-reverse;
  }
  .faq-answer-img-wrap {
    max-width: 220px;
  }
  .faq-answer-img-wide {
    max-height: 160px;
    width: 100%;
    height: auto;
  }
  .faq-section-title {
    font-size: 2rem;
  }
  .faq-cat-link {
    font-size: 0.95rem;
    padding: 0.5rem 1.4rem;
  }
  .faq-cta {
    padding: 3.5rem 0;
  }
  .faq-cta-title {
    font-size: 2rem;
  }
}

/* ===== 响应式：桌面 ===== */
@media (min-width: 960px) {
  .faq-hero {
    padding: 5rem 0 3.5rem;
  }
  .faq-hero-title {
    font-size: 4rem;
  }
  .faq-hero-desc {
    font-size: 1.25rem;
    max-width: 700px;
  }
  .faq-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
  .faq-grid-usage {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .faq-card-image {
    grid-column: span 1;
  }
  .faq-answer-img-wrap {
    max-width: 180px;
  }
  .faq-answer-img-wide {
    max-height: 140px;
  }
  .faq-question {
    font-size: 1.1rem;
    padding: 1.2rem 1.5rem;
  }
  .faq-answer-inner {
    padding: 0 1.5rem 1.5rem;
    font-size: 1rem;
  }
  .faq-category-nav {
    gap: 0.8rem;
  }
  .faq-section-title {
    font-size: 2.25rem;
  }
  .faq-cta-title {
    font-size: 2.25rem;
  }
  .faq-cta-btn {
    font-size: 1.05rem;
    padding: 0.85rem 2.5rem;
  }
}

/* ===== 超大屏 ===== */
@media (min-width: 1200px) {
  .faq-grid {
    grid-template-columns: 1fr 1fr;
  }
  .faq-grid-usage {
    grid-template-columns: repeat(3, 1fr);
  }
  .faq-card-image {
    grid-column: span 1;
  }
  .faq-answer-img-wrap {
    max-width: 200px;
  }
}

/* ===== 辅助 ===== */
.page-faq .container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
  box-sizing: border-box;
}
@media (min-width: 640px) {
  .page-faq .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}
@media (min-width: 960px) {
  .page-faq .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}
.page-faq .btn-accent {
  background: var(--color-accent, #FF6F00);
  color: #fff;
  border: none;
  padding: 0.75rem 2rem;
  border-radius: 48px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  display: inline-block;
  transition: background var(--faq-transition), transform var(--faq-transition);
}
.page-faq .btn-accent:hover {
  background: var(--color-accent-light, #FF9100);
  transform: translateY(-2px);
}
</<PAGE_CSS>>