/* ===== 页面专属：帮助中心 .page-faq ===== */
.page-faq {
  --faq-gold-glow: 0 0 12px rgba(212,175,55,0.35);
  --faq-purple-glow: 0 0 10px rgba(123,45,142,0.3);
  --faq-card-radius: 6px;
  --faq-transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --faq-grid-color: rgba(42, 45, 74, 0.25);

  background:
    linear-gradient(135deg, rgba(10,11,26,0.98) 0%, rgba(26,28,46,0.95) 100%),
    repeating-linear-gradient(0deg, transparent, transparent 48px, var(--faq-grid-color) 48px, var(--faq-grid-color) 50px),
    repeating-linear-gradient(90deg, transparent, transparent 48px, var(--faq-grid-color) 48px, var(--faq-grid-color) 50px);
  padding: 32px 16px 64px;
  min-height: 70vh;
}

/* ===== 容器 ===== */
.page-faq .container {
  max-width: var(--content-width, 1200px);
  margin: 0 auto;
}

/* ===== 面包屑 ===== */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 13px;
  color: var(--text-secondary, #B0B0C0);
  margin-bottom: 28px;
  padding: 0 0 12px;
  border-bottom: 1px solid var(--border-color, #2A2D4A);
}
.page-faq .breadcrumb a {
  color: var(--gold, #D4AF37);
  text-decoration: none;
  transition: color var(--faq-transition);
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--cyan, #00CED1);
  outline: none;
  text-shadow: 0 0 6px rgba(0,206,209,0.3);
}
.page-faq .breadcrumb .sep {
  color: var(--border-color, #2A2D4A);
  user-select: none;
}
.page-faq .breadcrumb [aria-current="page"] {
  color: var(--text-primary, #FFFFFF);
  font-weight: 600;
}

/* ===== 顶部英雄区 ===== */
.page-faq .faq-hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px 32px;
  margin-bottom: 48px;
  padding: 24px 20px 28px;
  background: var(--bg-surface, #1A1C2E);
  border-left: 4px solid var(--gold, #D4AF37);
  border-radius: var(--faq-card-radius);
  box-shadow: var(--faq-gold-glow);
}
.page-faq .faq-hero-text {
  flex: 1 1 280px;
  min-width: 0;
}
.page-faq .faq-hero-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: 800;
  font-size: 2rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-primary, #FFFFFF);
  text-shadow: 0 0 10px rgba(212,175,55,0.3);
  margin: 0 0 4px;
}
.page-faq .faq-hero-sub {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.95rem;
  color: var(--text-secondary, #B0B0C0);
  margin: 0 0 16px;
}
.page-faq .faq-search-wrap {
  position: relative;
  max-width: 420px;
  margin-bottom: 12px;
}
.page-faq .faq-search-input {
  width: 100%;
  padding: 12px 16px 12px 42px;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.95rem;
  color: var(--text-primary, #FFFFFF);
  background: var(--bg-primary, #0A0B1A);
  border: 1.5px solid var(--border-color, #2A2D4A);
  border-radius: var(--radius-md, 8px);
  outline: none;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
  box-sizing: border-box;
}
.page-faq .faq-search-input::placeholder {
  color: var(--text-secondary, #B0B0C0);
  opacity: 0.7;
}
.page-faq .faq-search-input:focus {
  border-color: var(--gold, #D4AF37);
  box-shadow: 0 0 12px rgba(212,175,55,0.2);
}
.page-faq .faq-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  color: var(--gold, #D4AF37);
  pointer-events: none;
  line-height: 1;
}
.page-faq .faq-expand-all {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.8rem;
  padding: 6px 18px;
  color: var(--cyan, #00CED1);
  background: transparent;
  border: 1.5px solid var(--cyan, #00CED1);
  border-radius: var(--radius-sm, 4px);
  cursor: pointer;
  transition: background var(--faq-transition), color var(--faq-transition), box-shadow var(--faq-transition);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.page-faq .faq-expand-all:hover,
.page-faq .faq-expand-all:focus-visible {
  background: rgba(0,206,209,0.12);
  box-shadow: 0 0 10px rgba(0,206,209,0.25);
  outline: none;
}
.page-faq .faq-hero-figure {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-faq .faq-hero-img {
  display: block;
  width: 120px;
  height: auto;
  max-width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 0 14px rgba(212,175,55,0.35));
  border-radius: var(--radius-sm, 4px);
}

/* ===== 分类区块 ===== */
.page-faq .faq-category {
  margin-bottom: 48px;
  padding: 0 4px;
}
.page-faq .faq-category .section-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: 800;
  font-size: 1.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-primary, #FFFFFF);
  margin: 0 0 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--gold, #D4AF37);
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-faq .faq-category .section-title .text-gold {
  text-shadow: var(--faq-gold-glow);
  font-size: 1.5rem;
}

/* ===== 问题列表 ===== */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ===== 单个问题卡片 ===== */
.page-faq .faq-item {
  background: var(--bg-surface, #1A1C2E);
  border: 1px solid var(--border-color, #2A2D4A);
  border-radius: var(--faq-card-radius);
  overflow: hidden;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
}
.page-faq .faq-item[open] {
  border-color: rgba(212,175,55,0.4);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4), var(--faq-gold-glow);
}

/* ===== 问题标题（可点击） ===== */
.page-faq .faq-q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--faq-transition);
}
.page-faq .faq-q::-webkit-details-marker {
  display: none;
}
.page-faq .faq-q:hover {
  background: rgba(212,175,55,0.04);
}
.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--gold, #D4AF37);
  outline-offset: -2px;
}

/* 编号 */
.page-faq .faq-num {
  flex: 0 0 36px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: 800;
  font-size: 1rem;
  color: var(--bg-primary, #0A0B1A);
  background: var(--gold, #D4AF37);
  border-radius: 50%;
  text-shadow: none;
  box-shadow: 0 0 10px rgba(212,175,55,0.5);
  line-height: 1;
}

/* 问题文字 */
.page-faq .faq-q-text {
  flex: 1;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text-primary, #FFFFFF);
  line-height: 1.4;
  min-width: 0;
}

/* 展开指示器 */
.page-faq .faq-toggle {
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  position: relative;
  transition: transform var(--faq-transition);
}
.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: '';
  position: absolute;
  background: var(--gold, #D4AF37);
  border-radius: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: transform var(--faq-transition);
}
.page-faq .faq-toggle::before {
  width: 12px;
  height: 2px;
}
.page-faq .faq-toggle::after {
  width: 2px;
  height: 12px;
}
.page-faq .faq-item[open] .faq-toggle {
  transform: rotate(45deg);
}

/* ===== 答案内容 ===== */
.page-faq .faq-a {
  max-height: 0;
  overflow: hidden;
  padding: 0 18px 0 68px;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.92rem;
  color: var(--text-secondary, #B0B0C0);
  line-height: 1.7;
  border-top: 1px solid transparent;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease, border-color 0.3s ease;
  box-sizing: content-box;
}
.page-faq .faq-item[open] .faq-a {
  max-height: 1200px;
  padding: 16px 18px 22px 68px;
  border-top-color: rgba(212,175,55,0.15);
}
.page-faq .faq-a p {
  margin: 0 0 10px;
}
.page-faq .faq-a p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-a a {
  color: var(--cyan, #00CED1);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--faq-transition), text-shadow var(--faq-transition);
}
.page-faq .faq-a a:hover,
.page-faq .faq-a a:focus-visible {
  color: var(--gold, #D4AF37);
  text-shadow: 0 0 6px rgba(212,175,55,0.25);
  outline: none;
}

/* ===== 内联图片 ===== */
.page-faq .faq-img-block {
  margin-top: 14px;
  max-width: 100%;
}
.page-faq .faq-inline-img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm, 4px);
  border: 1px solid var(--border-color, #2A2D4A);
  object-fit: cover;
  background: var(--bg-primary, #0A0B1A);
}

/* ===== 联系支持 CTA ===== */
.page-faq .faq-category-support .faq-support-cta {
  margin-top: 20px;
  text-align: center;
}
.page-faq .faq-support-cta .btn-gold {
  display: inline-block;
  padding: 12px 36px;
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--bg-primary, #0A0B1A);
  background: var(--gold, #D4AF37);
  border-radius: var(--radius-md, 8px);
  text-decoration: none;
  box-shadow: 0 0 16px rgba(212,175,55,0.3);
  transition: background var(--faq-transition), box-shadow var(--faq-transition), transform var(--faq-transition);
}
.page-faq .faq-support-cta .btn-gold:hover,
.page-faq .faq-support-cta .btn-gold:focus-visible {
  background: #e0c04a;
  box-shadow: 0 0 28px rgba(212,175,55,0.5);
  transform: translateY(-2px);
  outline: none;
}

/* ===== 底部信任声明 ===== */
.page-faq .faq-trust {
  margin-top: 24px;
  padding: 16px 20px;
  background: var(--bg-surface, #1A1C2E);
  border-left: 3px solid var(--purple, #7B2D8E);
  border-radius: var(--faq-card-radius);
  text-align: center;
}
.page-faq .faq-trust p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.6;
  max-width: 720px;
  margin: 0 auto;
}

/* ===== 隐藏辅助 ===== */
.page-faq .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ===== 工具类 ===== */
.page-faq .text-gold { color: var(--gold, #D4AF37); }
.page-faq .text-muted { color: var(--text-secondary, #B0B0C0); }
.page-faq .mono { font-family: var(--font-mono, 'JetBrains Mono', monospace); }

/* ===== 移动端优先 — 窄屏调优 ===== */
@media (max-width: 639px) {
  .page-faq {
    padding: 20px 12px 48px;
  }
  .page-faq .faq-hero {
    flex-direction: column;
    align-items: stretch;
    padding: 20px 16px 24px;
  }
  .page-faq .faq-hero-figure {
    align-self: center;
  }
  .page-faq .faq-hero-img {
    width: 90px;
  }
  .page-faq .faq-hero-title {
    font-size: 1.55rem;
  }
  .page-faq .faq-search-input {
    font-size: 0.88rem;
    padding: 10px 14px 10px 38px;
  }
  .page-faq .faq-search-icon {
    left: 12px;
    font-size: 1.1rem;
  }
  .page-faq .faq-q {
    padding: 14px 14px;
    gap: 10px;
  }
  .page-faq .faq-num {
    flex: 0 0 30px;
    width: 30px;
    height: 30px;
    font-size: 0.85rem;
  }
  .page-faq .faq-q-text {
    font-size: 0.9rem;
  }
  .page-faq .faq-a {
    padding: 0 14px 0 54px;
  }
  .page-faq .faq-item[open] .faq-a {
    padding: 12px 14px 18px 54px;
  }
  .page-faq .faq-category {
    margin-bottom: 36px;
  }
  .page-faq .faq-category .section-title {
    font-size: 1.1rem;
  }
  .page-faq .faq-support-cta .btn-gold {
    width: 100%;
    text-align: center;
    box-sizing: border-box;
  }
  .page-faq .faq-trust {
    padding: 14px 16px;
  }
}

/* ===== 桌面端增强 ===== */
@media (min-width: 768px) {
  .page-faq {
    padding: 40px 24px 80px;
  }
  .page-faq .faq-hero {
    padding: 32px 36px 36px;
    border-left-width: 6px;
  }
  .page-faq .faq-hero-title {
    font-size: 2.4rem;
  }
  .page-faq .faq-hero-img {
    width: 160px;
  }
  .page-faq .faq-category .section-title {
    font-size: 1.5rem;
  }
  .page-faq .faq-q {
    padding: 18px 24px;
  }
  .page-faq .faq-num {
    flex: 0 0 40px;
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
  }
  .page-faq .faq-q-text {
    font-size: 1.02rem;
  }
  .page-faq .faq-a {
    padding: 0 24px 0 78px;
    font-size: 0.95rem;
  }
  .page-faq .faq-item[open] .faq-a {
    padding: 18px 24px 24px 78px;
  }
  .page-faq .faq-item:hover {
    border-color: rgba(212,175,55,0.25);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    flex-wrap: nowrap;
  }
  .page-faq .faq-hero-title {
    font-size: 2.8rem;
  }
  .page-faq .faq-hero-img {
    width: 200px;
  }
  .page-faq .faq-category {
    padding: 0 20px;
  }
  .page-faq .faq-list {
    gap: 12px;
  }
}