/* ===== 页面专属：支持中心 FAQ ===== */
.page-faq {
  --faq-hero-bg-start: #0a1f3f;
  --faq-hero-bg-end: #132d5e;
  --faq-gold-soft: #f5d74222;
  --faq-card-radius: 12px;
  --faq-answer-bg: #faf6ed;
  --faq-border-light: #e8e0cc;
  --faq-tab-active-bg: #e6b800;
  --faq-tab-active-text: #0a1f3f;
  --faq-shadow-hover: 0 8px 28px rgba(10, 31, 63, 0.18);
  --faq-transition-accordion: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 滚动进度条 */
.faq-scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 1000;
  pointer-events: none;
}
.faq-scroll-progress::after {
  content: '';
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-gold, #e6b800), var(--color-orange, #ff6600));
  transition: width 0.1s linear;
}

/* 首屏英雄区 */
.faq-hero {
  position: relative;
  background: linear-gradient(145deg, var(--faq-hero-bg-start), var(--faq-hero-bg-end));
  padding: var(--spacing-xl, 48px) 0 var(--spacing-lg, 24px);
  overflow: hidden;
}
.faq-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 30%, rgba(230, 184, 0, 0.08) 0%, transparent 60%),
    radial-gradient(circle at 90% 70%, rgba(0, 204, 102, 0.06) 0%, transparent 50%);
  pointer-events: none;
}
.faq-hero-inner {
  position: relative;
  z-index: 1;
}
.faq-breadcrumb {
  font-family: var(--font-data, 'Courier New', monospace);
  font-size: 0.8rem;
  color: rgba(245, 240, 225, 0.7);
  margin-bottom: var(--spacing-md, 16px);
  letter-spacing: 0.5px;
}
.faq-breadcrumb a {
  color: var(--color-gold, #e6b800);
  text-decoration: none;
}
.faq-breadcrumb a:hover {
  text-decoration: underline;
}
.faq-breadcrumb-sep {
  margin: 0 8px;
}
.faq-hero-title {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-size: 2.2rem;
  font-weight: 700;
  font-style: italic;
  color: #ffffff;
  margin: 0 0 var(--spacing-sm, 8px);
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.faq-hero-sub {
  font-size: 1rem;
  color: rgba(245, 240, 225, 0.85);
  margin: 0 0 var(--spacing-lg, 24px);
  max-width: 480px;
}

/* 搜索框 */
.faq-search-box {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--color-gold, #e6b800);
  border-radius: 8px;
  padding: 0 var(--spacing-md, 16px);
  max-width: 520px;
  transition: background 0.3s, box-shadow 0.3s;
}
.faq-search-box:focus-within {
  background: rgba(255, 255, 255, 0.14);
  box-shadow: 0 0 0 3px rgba(230, 184, 0, 0.25);
}
.faq-search-icon {
  flex-shrink: 0;
  color: var(--color-gold, #e6b800);
  margin-right: var(--spacing-sm, 8px);
}
.faq-search-input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 12px 0;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.95rem;
  color: #ffffff;
  outline: none;
}
.faq-search-input::placeholder {
  color: rgba(245, 240, 225, 0.55);
}

/* 统计数字 */
.faq-hero-stats {
  display: flex;
  gap: var(--spacing-lg, 24px);
  margin-top: var(--spacing-lg, 24px);
  padding-top: var(--spacing-md, 16px);
  border-top: 1px solid rgba(245, 240, 225, 0.15);
}
.faq-stat-item {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.faq-stat-item .data-value {
  font-family: var(--font-data, 'Courier New', monospace);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-gold, #e6b800);
  line-height: 1;
}
.faq-stat-label {
  font-size: 0.8rem;
  color: rgba(245, 240, 225, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* 主内容区 */
.faq-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg, 24px);
  padding-top: var(--spacing-xl, 48px);
  padding-bottom: var(--spacing-2xl, 64px);
}

/* 分类标签切换 */
.faq-category-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm, 8px);
  margin-bottom: var(--spacing-lg, 24px);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.faq-category-tab {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--faq-border-light, #e8e0cc);
  border-radius: 20px;
  background: var(--color-cream, #f5f0e1);
  color: var(--color-dark, #2b1d1d);
  cursor: pointer;
  transition: all var(--transition-fast, 0.2s ease);
  white-space: nowrap;
}
.faq-category-tab:hover {
  border-color: var(--color-gold, #e6b800);
  color: var(--color-primary, #0a1f3f);
}
.faq-category-tab.is-active {
  background: var(--faq-tab-active-bg, #e6b800);
  border-color: var(--faq-tab-active-bg, #e6b800);
  color: var(--faq-tab-active-text, #0a1f3f);
  font-weight: 700;
}

/* 分类区块 */
.faq-category-section {
  margin-bottom: var(--spacing-xl, 48px);
}
.faq-category-section:last-child {
  margin-bottom: 0;
}
.faq-category-heading {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-size: 1.4rem;
  font-weight: 700;
  font-style: italic;
  color: var(--color-primary, #0a1f3f);
  margin: 0 0 var(--spacing-md, 16px);
  padding-left: var(--spacing-md, 16px);
  border-left: 4px solid var(--color-gold, #e6b800);
}

/* 折叠卡片 */
.faq-card {
  margin-bottom: var(--spacing-md, 16px);
  border-radius: var(--faq-card-radius, 12px);
  background: var(--color-cream, #f5f0e1);
  transition: box-shadow var(--transition-base, 0.35s ease), transform var(--transition-base, 0.35s ease);
  overflow: hidden;
}
.faq-card:hover {
  box-shadow: var(--faq-shadow-hover, 0 8px 28px rgba(10, 31, 63, 0.18));
  transform: translateY(-2px);
}

.faq-question {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 16px 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-dark, #2b1d1d);
  text-align: left;
  transition: background var(--transition-fast, 0.2s ease);
  gap: var(--spacing-sm, 8px);
}
.faq-question:hover {
  background: var(--faq-gold-soft, #f5d74222);
}
.faq-q-number {
  flex-shrink: 0;
  font-family: var(--font-data, 'Courier New', monospace);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-gold, #e6b800);
  background: rgba(230, 184, 0, 0.12);
  padding: 2px 8px;
  border-radius: 4px;
  margin-right: 4px;
}
.faq-q-text {
  flex: 1;
  line-height: 1.4;
}
.faq-arrow {
  flex-shrink: 0;
  color: var(--color-gold, #e6b800);
  transition: transform var(--faq-transition-accordion, 0.35s cubic-bezier(0.4, 0, 0.2, 1));
}
.faq-question[aria-expanded="true"] .faq-arrow {
  transform: rotate(90deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--faq-transition-accordion, 0.35s cubic-bezier(0.4, 0, 0.2, 1)), padding var(--faq-transition-accordion, 0.35s cubic-bezier(0.4, 0, 0.2, 1));
  padding: 0 20px;
  background: var(--faq-answer-bg, #faf6ed);
  border-top: 0 solid transparent;
}
.faq-question[aria-expanded="true"] + .faq-answer {
  max-height: 600px;
  padding: 16px 20px 20px;
  border-top-width: 1px;
  border-top-color: var(--faq-border-light, #e8e0cc);
}
.faq-answer p {
  margin: 0 0 var(--spacing-sm, 8px);
  line-height: 1.65;
  color: var(--color-dark, #2b1d1d);
  font-size: 0.9rem;
}
.faq-answer p:last-child {
  margin-bottom: 0;
}
.faq-answer a {
  color: var(--color-primary, #0a1f3f);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.faq-answer a:hover {
  color: var(--color-gold, #e6b800);
}

.faq-step-list {
  margin: var(--spacing-sm, 8px) 0;
  padding-left: 24px;
  list-style: none;
  counter-reset: faq-step;
}
.faq-step-list li {
  position: relative;
  padding-left: 8px;
  margin-bottom: 6px;
  line-height: 1.6;
  font-size: 0.9rem;
  color: var(--color-dark, #2b1d1d);
}
.faq-step-list li::before {
  counter-increment: faq-step;
  content: counter(faq-step) '.';
  position: absolute;
  left: -20px;
  font-family: var(--font-data, 'Courier New', monospace);
  color: var(--color-gold, #e6b800);
  font-weight: 700;
}
.faq-step-list ul,
.faq-step-list ol {
  padding-left: 20px;
  margin-top: 4px;
}
.faq-step-list ul li::before {
  content: '–';
  left: -14px;
  counter-increment: none;
  color: var(--color-gold, #e6b800);
}
.faq-note {
  font-size: 0.82rem;
  color: rgba(43, 29, 29, 0.65);
  border-left: 3px solid var(--color-gold, #e6b800);
  padding-left: var(--spacing-sm, 8px);
  margin-top: var(--spacing-sm, 8px);
}

/* 图片块 */
.faq-image-block {
  margin: var(--spacing-md, 16px) 0 var(--spacing-sm, 8px);
  text-align: center;
}
.faq-inline-img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--faq-border-light, #e8e0cc);
  background: #ffffff;
  object-fit: cover;
}
.faq-img-caption {
  display: block;
  margin-top: 4px;
  font-size: 0.75rem;
  color: rgba(43, 29, 29, 0.5);
  font-family: var(--font-data, 'Courier New', monospace);
}

/* 侧边栏 */
.faq-sidebar {
  margin-top: var(--spacing-lg, 24px);
}
.faq-sidebar-card {
  background: var(--color-cream, #f5f0e1);
  padding: var(--spacing-lg, 24px);
  border-radius: var(--faq-card-radius, 12px);
  text-align: center;
}
.faq-sidebar-title {
  font-family: var(--font-heading, 'Helvetica Neue', Arial, sans-serif);
  font-size: 1.1rem;
  font-weight: 700;
  font-style: italic;
  color: var(--color-primary, #0a1f3f);
  margin: 0 0 var(--spacing-sm, 8px);
}
.faq-sidebar-text {
  font-size: 0.9rem;
  color: var(--color-dark, #2b1d1d);
  margin: 0 0 var(--spacing-md, 16px);
}
.faq-sidebar .btn {
  display: inline-block;
  padding: 10px 28px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
}
.faq-sidebar-divider {
  border: none;
  border-top: 1px solid var(--faq-border-light, #e8e0cc);
  margin: var(--spacing-md, 16px) 0;
}
.faq-sidebar-small {
  font-size: 0.78rem;
  color: rgba(43, 29, 29, 0.55);
  line-height: 1.7;
}
.faq-sidebar-small a {
  color: var(--color-primary, #0a1f3f);
  text-decoration: underline;
}

/* 页脚提示 */
.faq-footer-note {
  background: var(--color-primary, #0a1f3f);
  padding: var(--spacing-lg, 24px) 0;
  text-align: center;
}
.faq-footer-note p {
  margin: 0;
  color: rgba(245, 240, 225, 0.85);
  font-size: 0.88rem;
}
.faq-footer-note strong {
  color: var(--color-gold, #e6b800);
}

/* 滚动显现 */
.faq-card[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.faq-card[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 767px) {
  .faq-hero {
    padding: var(--spacing-lg, 24px) 0 var(--spacing-md, 16px);
  }
  .faq-hero-title {
    font-size: 1.6rem;
  }
  .faq-hero-sub {
    font-size: 0.9rem;
  }
  .faq-search-box {
    max-width: 100%;
  }
  .faq-hero-stats {
    flex-wrap: wrap;
    gap: var(--spacing-md, 16px);
  }
  .faq-stat-item .data-value {
    font-size: 1.2rem;
  }
  .faq-category-list {
    gap: 6px;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 4px;
  }
  .faq-category-tab {
    font-size: 0.78rem;
    padding: 6px 14px;
  }
  .faq-category-heading {
    font-size: 1.15rem;
  }
  .faq-question {
    padding: 14px 16px;
    font-size: 0.88rem;
  }
  .faq-answer {
    padding: 0 16px;
  }
  .faq-question[aria-expanded="true"] + .faq-answer {
    padding: 12px 16px 16px;
  }
  .faq-step-list {
    padding-left: 20px;
  }
  .faq-sidebar-card {
    padding: var(--spacing-md, 16px);
  }
  .faq-footer-note {
    padding: var(--spacing-md, 16px) 0;
  }
  .faq-footer-note p {
    font-size: 0.8rem;
  }
  .faq-inline-img {
    width: 100% !important;
    height: auto !important;
  }
}

@media (min-width: 768px) {
  .faq-main {
    grid-template-columns: 1fr 280px;
    align-items: start;
  }
  .faq-accordion {
    grid-column: 1;
  }
  .faq-sidebar {
    grid-column: 2;
    margin-top: 0;
    position: sticky;
    top: calc(var(--header-height, 80px) + var(--spacing-md, 16px));
  }
  .faq-hero-title {
    font-size: 2.6rem;
  }
}

@media (min-width: 1024px) {
  .faq-hero {
    padding: var(--spacing-2xl, 64px) 0 var(--spacing-xl, 48px);
  }
  .faq-hero-title {
    font-size: 3rem;
  }
  .faq-main {
    column-gap: var(--spacing-xl, 48px);
  }
}

/* 减少动效 */
@media (prefers-reduced-motion: reduce) {
  .faq-card[data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .faq-scroll-progress::after {
    transition: none;
  }
  .faq-card:hover {
    transform: none;
  }
  .faq-arrow {
    transition: none;
  }
  .faq-answer {
    transition: none;
  }
}