/* ========== 问题解答页 FAQ 专属样式 ========== */
.page-faq {
  --faq-card-border: rgba(255, 255, 255, 0.08);
  --faq-kw-bg: rgba(0, 255, 135, 0.1);
  --faq-gradient: linear-gradient(135deg, rgba(0, 255, 135, 0.10) 0%, rgba(255, 107, 0, 0.05) 100%);
  background: var(--bg-deep);
  color: var(--base-light);
}

/* ---------- 首屏标题区 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 48px 20px 36px;
  background:
    radial-gradient(circle at 85% 20%, rgba(0, 255, 135, 0.10), transparent 300px),
    linear-gradient(180deg, #0E1C31 0%, var(--bg-deep) 100%);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-orange));
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -64px;
  width: 220px;
  height: 220px;
  border: 24px solid rgba(0, 255, 135, 0.06);
  transform: rotate(12deg);
  pointer-events: none;
}
.page-faq .faq-hero-inner {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  font-size: 14px;
  color: rgba(242, 239, 233, 0.55);
}
.page-faq .breadcrumb a {
  color: var(--accent-green);
  text-decoration: none;
}
.page-faq .breadcrumb a:hover {
  color: var(--accent-orange);
}

.page-faq .faq-eyebrow {
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--accent-orange);
}

.page-faq .page-title {
  max-width: 900px;
  margin: 0 0 20px;
  font-family: var(--font-headline);
  font-size: clamp(28px, 4.6vw, 44px);
  line-height: 1.16;
}

.page-faq .faq-lead {
  max-width: 820px;
  margin-bottom: 12px;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(242, 239, 233, 0.78);
}
.page-faq .faq-trust {
  margin: 0 0 28px;
  font-size: 14px;
  color: rgba(242, 239, 233, 0.50);
}

.page-faq .faq-stat-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.page-faq .faq-stat {
  flex: 1 1 140px;
  max-width: 180px;
  padding: 16px 18px;
  background: rgba(27, 42, 65, 0.8);
  border-left: 2px solid var(--accent-green);
  border-radius: 0 8px 8px 0;
  backdrop-filter: blur(6px);
}
.page-faq .faq-stat .data-kpi {
  display: block;
  font-size: 28px;
}
.page-faq .faq-stat .kpi-label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: rgba(242, 239, 233, 0.6);
}

/* ---------- 主体两栏布局 ---------- */
.page-faq .faq-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 20px 80px;
  display: grid;
  gap: 40px;
}

/* ---------- 左侧目录 ---------- */
.page-faq .faq-toc {
  padding: 24px 22px;
  background: var(--bg-card);
  border: 1px solid var(--faq-card-border);
  border-radius: 8px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}
.page-faq .faq-toc-title {
  margin: 0 0 14px;
  font-family: var(--font-headline);
  font-size: 16px;
  letter-spacing: 0.04em;
  color: var(--accent-green);
}
.page-faq .faq-toc-nav {
  display: flex;
  flex-direction: column;
}
.page-faq .faq-toc-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 4px;
  font-size: 15px;
  color: rgba(242, 239, 233, 0.75);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color 0.25s ease, padding-left 0.25s var(--ease-out-expo);
}
.page-faq .faq-toc-nav a::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  background: var(--accent-orange);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}
.page-faq .faq-toc-nav a:hover {
  color: var(--accent-green);
  padding-left: 10px;
}
.page-faq .faq-toc-note {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(242, 239, 233, 0.45);
}
.page-faq .faq-toc-note a {
  color: var(--accent-orange);
  text-decoration: none;
}
.page-faq .faq-toc-note a:hover {
  color: var(--accent-green);
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 56px;
}
.page-faq .faq-category {
  position: relative;
  scroll-margin-top: 24px;
}

.page-faq .faq-category-head {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
  padding: 24px 20px;
  background: var(--faq-gradient);
  border-left: 3px solid var(--accent-green);
  border-radius: 2px 10px 10px 2px;
}
.page-faq .faq-cat-num {
  position: absolute;
  top: 12px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-orange);
}
.page-faq .faq-category-icon {
  flex: 0 0 44px;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: var(--accent-green);
  background: var(--bg-deep);
  border: 1px solid rgba(0, 255, 135, 0.35);
  border-radius: 10px 2px 10px 2px;
}
.page-faq .faq-category-icon svg {
  width: 22px;
  height: 22px;
}
.page-faq .faq-category-head h2 {
  margin: 0 0 6px;
  font-family: var(--font-headline);
  font-size: 22px;
  line-height: 1.3;
}
.page-faq .faq-category-head p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 239, 233, 0.6);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 16px;
  padding: 10px;
  background: var(--bg-card);
  border-radius: 4px 18px 18px 4px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 2px 14px 14px 2px;
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  margin-bottom: 14px;
  background: var(--bg-card);
  border: 1px solid var(--faq-card-border);
  border-radius: 4px 16px 16px 4px;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}
.page-faq .faq-item[open] {
  background: #17243A;
  border-color: rgba(0, 255, 135, 0.40);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  list-style: none;
  cursor: pointer;
  user-select: none;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: -2px;
  border-radius: 4px 14px 0 0;
}

.page-faq .faq-q {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--base-light);
}
.page-faq .faq-item[open] .faq-q {
  color: var(--accent-green);
}

.page-faq .faq-toggle {
  position: relative;
  flex: 0 0 12px;
  width: 12px;
  height: 12px;
}
.page-faq .faq-toggle::after {
  content: "";
  display: block;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--accent-green);
  border-bottom: 2px solid var(--accent-green);
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform 0.3s var(--ease-out-expo);
}
.page-faq .faq-item[open] .faq-toggle::after {
  transform: rotate(225deg);
}

.page-faq .faq-a {
  margin: 0 20px 20px;
  padding: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 239, 233, 0.82);
  border-top: 1px dashed rgba(0, 255, 135, 0.22);
}
.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(--accent-green);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 答案内关键词 ---------- */
.page-faq .faq-kw {
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: var(--accent-green);
  background: var(--faq-kw-bg);
  border: 1px solid rgba(0, 255, 135, 0.45);
  border-radius: 4px;
  padding: 1px 6px;
}

/* ---------- 答案内提示与代码块 ---------- */
.page-faq .faq-a .notice,
.page-faq .faq-a .notice-info {
  margin-top: 14px;
  font-size: 14px;
}
.page-faq .faq-code {
  display: inline-block;
  margin: 10px 0 2px;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-green);
  background: #0B1B2E;
  border: 1px solid rgba(0, 255, 135, 0.30);
  border-radius: 6px;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.2);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
  .page-faq .faq-toc {
    position: sticky;
    top: 24px;
  }
  .page-faq .faq-body {
    gap: 72px;
  }
  .page-faq .faq-category-head {
    padding: 28px 24px;
  }
  .page-faq .faq-category-head h2 {
    font-size: 24px;
  }
  .page-faq .faq-item summary {
    padding: 20px 24px;
  }
  .page-faq .faq-a {
    margin-left: 24px;
    margin-right: 24px;
  }
}