/* ===== 页面专属：page-faq ===== */
.page-faq {
  --faq-bg-card: #1e2d3d;
  --faq-border: #2c3e50;
  --faq-border-active: #E67E22;
  --faq-text-dim: #95A5A6;
  --faq-answer-bg: #162330;
  --faq-radius-item: 10px;
  display: block;
  padding: 2rem 0 4rem;
  background: var(--bg-dark, #1A252F);
  color: var(--text-primary, #FFFFFF);
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  line-height: 1.7;
}

/* ---------- 容器 ---------- */
.page-faq .container {
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-family: var(--font-mono, 'Source Code Pro', monospace);
  color: var(--text-secondary, #BDC3C7);
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
}
.page-faq .breadcrumb a {
  color: var(--color-silver, #95A5A6);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--color-orange, #E67E22);
  outline: none;
}
.page-faq .breadcrumb__sep {
  color: var(--color-silver, #95A5A6);
  opacity: 0.5;
  font-size: 0.75rem;
}

/* ---------- 页面标题区 ---------- */
.page-faq .faq-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--faq-border, #2c3e50);
}
.page-faq .faq-header__icon {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--faq-bg-card, #1e2d3d);
  padding: 8px;
  object-fit: contain;
  box-shadow: 0 0 0 1px var(--faq-border, #2c3e50);
}
.page-faq .faq-header__text {
  flex: 1;
  min-width: 0;
}
.page-faq .faq-header__title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: 900;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--text-primary, #FFFFFF);
  margin: 0 0 0.3rem;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.page-faq .faq-header__desc {
  font-size: 0.95rem;
  color: var(--text-secondary, #BDC3C7);
  margin: 0;
  max-width: 640px;
  line-height: 1.6;
}

/* ---------- section-title 覆写（保持共享类名下专属间距） ---------- */
.page-faq .section-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: 800;
  font-size: clamp(1.15rem, 2.5vw, 1.5rem);
  color: var(--color-orange, #E67E22);
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  letter-spacing: 0.01em;
}
.page-faq .section-title::before {
  content: attr(data-index);
  font-family: var(--font-mono, 'Source Code Pro', monospace);
  font-size: 0.85em;
  color: var(--color-silver, #95A5A6);
  background: var(--faq-bg-card, #1e2d3d);
  padding: 0.15em 0.6em;
  border-radius: 4px;
  border: 1px solid var(--faq-border, #2c3e50);
  line-height: 1.4;
}

/* ---------- FAQ区块 ---------- */
.page-faq .faq-section {
  margin-bottom: 2.5rem;
  padding: 1.5rem 1.25rem;
  background: var(--faq-bg-card, #1e2d3d);
  border-radius: var(--radius, 12px);
  border: 1px solid var(--faq-border, #2c3e50);
}

/* ---------- 手风琴列表 ---------- */
.page-faq .faq-list {
  counter-reset: faq-counter;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* ---------- 单个手风琴项 ---------- */
.page-faq .faq-item {
  counter-increment: faq-counter;
  position: relative;
  border-radius: var(--faq-radius-item, 10px);
  background: var(--faq-answer-bg, #162330);
  border: 1px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.page-faq .faq-item:hover {
  border-color: var(--faq-border, #2c3e50);
}

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

/* ---------- 问题标签 ---------- */
.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  color: var(--text-primary, #FFFFFF);
  cursor: pointer;
  user-select: none;
  border-radius: var(--faq-radius-item, 10px);
  transition: color 0.25s ease, background 0.25s ease;
  min-height: 52px;
  line-height: 1.4;
}
.page-faq .faq-question::before {
  content: counter(faq-counter, decimal-leading-zero);
  font-family: var(--font-mono, 'Source Code Pro', monospace);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-silver, #95A5A6);
  background: transparent;
  border: 1px solid var(--faq-border, #2c3e50);
  border-radius: 4px;
  padding: 0.1em 0.45em;
  min-width: 2.2em;
  text-align: center;
  flex-shrink: 0;
  transition: border-color 0.25s ease, color 0.25s ease, background 0.25s ease;
}
.page-faq .faq-question::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono, 'Source Code Pro', monospace);
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--color-orange, #E67E22);
  transition: transform 0.3s ease, color 0.25s ease;
  flex-shrink: 0;
  line-height: 1;
}
.page-faq .faq-question:hover,
.page-faq .faq-question:focus-visible {
  color: var(--color-orange, #E67E22);
  outline: none;
}
.page-faq .faq-question:focus-visible {
  box-shadow: inset 0 0 0 2px var(--color-orange, #E67E22);
}

/* ---------- radio选中时的问题样式 ---------- */
.page-faq .faq-radio:checked + .faq-question {
  color: var(--color-orange, #E67E22);
  background: rgba(230, 126, 34, 0.06);
}
.page-faq .faq-radio:checked + .faq-question::after {
  content: "−";
  transform: rotate(0deg);
  color: var(--cta-highlight, #F39C12);
}
.page-faq .faq-radio:checked + .faq-question::before {
  border-color: var(--color-orange, #E67E22);
  color: var(--color-orange, #E67E22);
  background: rgba(230, 126, 34, 0.1);
}

/* ---------- 答案面板 ---------- */
.page-faq .faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 1.25rem;
  color: var(--text-secondary, #BDC3C7);
  font-size: 0.95rem;
  line-height: 1.7;
  border-top: 0 solid transparent;
  transition: max-height 0.4s ease, padding 0.3s ease, border-top 0.3s ease;
  background: transparent;
}
.page-faq .faq-answer p {
  margin: 0 0 0.75rem;
}
.page-faq .faq-answer p:last-child {
  margin-bottom: 0;
}

/* ---------- radio选中时展开答案 ---------- */
.page-faq .faq-radio:checked ~ .faq-answer {
  max-height: 600px;
  padding: 0.75rem 1.25rem 1.25rem;
  border-top: 1px solid var(--faq-border, #2c3e50);
}

/* ---------- 答案中的图片 ---------- */
.page-faq .faq-img {
  display: block;
  max-width: 100%;
  height: auto;
  margin-top: 1rem;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--faq-border, #2c3e50);
  object-fit: cover;
  background: var(--faq-bg-card, #1e2d3d);
}

/* ---------- 底部内链 ---------- */
.page-faq .faq-links {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  background: var(--faq-bg-card, #1e2d3d);
  border-radius: var(--radius, 12px);
  border: 1px solid var(--faq-border, #2c3e50);
  text-align: center;
}
.page-faq .faq-links p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-secondary, #BDC3C7);
}
.page-faq .faq-links a {
  color: var(--color-orange, #E67E22);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease, box-shadow 0.2s ease;
  padding: 0.1em 0.3em;
  border-radius: 3px;
}
.page-faq .faq-links a:hover,
.page-faq .faq-links a:focus-visible {
  color: var(--cta-highlight, #F39C12);
  box-shadow: 0 1px 0 0 currentColor;
  outline: none;
}

/* ---------- 桌面端增强 ---------- */
@media (min-width: 768px) {
  .page-faq {
    padding: 3rem 0 5rem;
  }
  .page-faq .container {
    padding: 0 2rem;
  }
  .page-faq .faq-header__icon {
    width: 80px;
    height: 80px;
    padding: 10px;
  }
  .page-faq .faq-header {
    gap: 1.5rem;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
  }
  .page-faq .faq-header__desc {
    font-size: 1.05rem;
  }
  .page-faq .faq-section {
    padding: 1.75rem 1.75rem;
    margin-bottom: 2rem;
  }
  .page-faq .faq-question {
    padding: 1.1rem 1.5rem;
    font-size: 1.05rem;
  }
  .page-faq .faq-answer {
    font-size: 1rem;
  }
  .page-faq .faq-radio:checked ~ .faq-answer {
    padding: 1rem 1.5rem 1.5rem;
  }
  .page-faq .faq-links {
    padding: 1.5rem 2rem;
  }
  .page-faq .faq-links p {
    font-size: 1rem;
  }
  .page-faq .faq-img {
    max-width: 300px;
  }
}

@media (min-width: 1024px) {
  .page-faq {
    padding: 4rem 0 6rem;
  }
  .page-faq .container {
    padding: 0 2.5rem;
  }
  .page-faq .faq-section {
    padding: 2rem 2rem;
  }
  .page-faq .faq-question {
    padding: 1.2rem 1.75rem;
    font-size: 1.1rem;
  }
  .page-faq .faq-radio:checked ~ .faq-answer {
    padding: 1.25rem 1.75rem 1.75rem;
  }
}

/* ---------- 窄屏微调 ---------- */
@media (max-width: 480px) {
  .page-faq .faq-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  .page-faq .faq-header__icon {
    width: 56px;
    height: 56px;
  }
  .page-faq .faq-section {
    padding: 1rem 0.75rem;
  }
  .page-faq .faq-question {
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
    gap: 0.5rem;
  }
  .page-faq .faq-question::before {
    font-size: 0.7rem;
    min-width: 1.8em;
  }
  .page-faq .faq-question::after {
    font-size: 1.2rem;
  }
  .page-faq .faq-answer {
    font-size: 0.9rem;
  }
  .page-faq .faq-radio:checked ~ .faq-answer {
    padding: 0.6rem 1rem 1rem;
  }
  .page-faq .faq-links {
    padding: 1rem 1rem;
  }
}

/* ---------- 键盘焦点 ---------- */
.page-faq .faq-question:focus-visible {
  outline: 2px solid var(--color-orange, #E67E22);
  outline-offset: -2px;
  border-radius: var(--faq-radius-item, 10px);
}
.page-faq a:focus-visible {
  outline: 2px solid var(--color-orange, #E67E22);
  outline-offset: 2px;
  border-radius: 3px;
}