.page-faq {
  --faq-sidebar-width: 320px;
  background:
    radial-gradient(rgba(217, 227, 220, 0.42) 1px, transparent 1px) 0 0 / 18px 18px,
    linear-gradient(180deg, rgba(217, 227, 220, 0.36) 1px, transparent 1px) 0 0 / 34px 34px,
    var(--paper);
  padding-bottom: var(--space-6);
}

/* ===== Hero 首屏 ===== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 14%, rgba(232, 182, 43, 0.16) 0, transparent 260px),
    linear-gradient(130deg, var(--deep-pitch) 0%, var(--pitch-green) 64%, #0E4A39 100%);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  padding: var(--space-3) 0 var(--space-4);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(243, 240, 230, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243, 240, 230, 0.05) 1px, transparent 1px);
  background-size: 34px 34px;
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 300px;
  height: 300px;
  border-radius: 40px;
  background: linear-gradient(315deg, transparent 30%, rgba(248, 213, 104, 0.2) 100%);
  transform: rotate(38deg);
  pointer-events: none;
}
.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
}
.page-faq .breadcrumb {
  margin-bottom: var(--space-3);
  color: rgba(243, 240, 230, 0.7);
}
.page-faq .breadcrumb a {
  color: var(--gold-light);
}
.page-faq .breadcrumb .breadcrumb-sep {
  margin: 0 var(--space-1);
  color: rgba(243, 240, 230, 0.45);
}
.page-faq .faq-hero-grid {
  display: grid;
  gap: var(--space-4);
}
.page-faq .faq-hero-heading .section-label {
  color: var(--gold-light);
}
.page-faq .faq-hero-heading h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 4.4rem);
  line-height: 1;
  margin: var(--space-2) 0;
  color: var(--gold-primary);
  letter-spacing: 0.02em;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.25);
}
.page-faq .faq-hero-lead {
  max-width: 640px;
  color: rgba(243, 240, 230, 0.86);
  font-size: 1rem;
  line-height: 1.7;
}
.page-faq .faq-hero-slogan {
  color: var(--gold-light);
  font-weight: 700;
}
.page-faq .faq-hero-search {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.page-faq .faq-search-heading {
  color: var(--gold-light);
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
}
.page-faq .faq-search-box {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--paper);
  border-radius: var(--radius-pill);
  padding: 10px var(--space-3);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
  border: 2px solid transparent;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.page-faq .faq-search-box:focus-within {
  border-color: var(--gold-primary);
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
}
.page-faq .faq-search-glyph {
  display: inline-flex;
  color: var(--pitch-green);
}
.page-faq .faq-search-box input {
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  width: 100%;
  outline: none;
}
.page-faq .faq-search-box input::placeholder {
  color: rgba(18, 28, 24, 0.45);
}
.page-faq .faq-search-hint {
  font-size: 0.78rem;
  color: rgba(243, 240, 230, 0.6);
}
.page-faq .faq-hero-stats {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid rgba(243, 240, 230, 0.15);
}
.page-faq .faq-hero-stat {
  display: grid;
  gap: 2px;
}
.page-faq .faq-hero-stat-num {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--gold-light);
  line-height: 1;
}
.page-faq .faq-hero-stat-label {
  color: rgba(243, 240, 230, 0.6);
  font-size: 0.78rem;
}

/* ===== 主体栅格 ===== */
.page-faq .faq-body {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-4) 0 0;
}

/* ===== 左侧分类树 ===== */
.page-faq .faq-sidebar-card {
  background: linear-gradient(160deg, var(--deep-pitch), #0E4A39);
  color: var(--paper);
  border-radius: var(--radius-xl);
  padding: var(--space-3);
  border: 1px solid rgba(232, 182, 43, 0.18);
  box-shadow: var(--shadow-capsule);
  position: relative;
  overflow: hidden;
}
.page-faq .faq-sidebar-card::after {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(232, 182, 43, 0.1);
}
.page-faq .faq-sidebar-card .section-label {
  color: var(--gold-light);
}
.page-faq .faq-sidebar-card h2 {
  font-size: 1.5rem;
  color: var(--paper);
  margin: var(--space-1) 0 var(--space-3);
  border-bottom: 1px solid rgba(248, 213, 104, 0.2);
  padding-bottom: var(--space-2);
}
.page-faq .faq-tree-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(232, 182, 43, 0.35);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
}
.page-faq .faq-tree {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}
.page-faq .faq-tree-item {
  position: relative;
}
.page-faq .faq-tree-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(243, 240, 230, 0.88);
  text-decoration: none;
  padding: 10px 12px 10px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 0.92rem;
  transition: background var(--transition), color var(--transition), transform var(--transition), border-color var(--transition);
}
.page-faq .faq-tree-link::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold-primary);
  transform: translateY(-50%);
  box-shadow: 0 0 0 4px rgba(232, 182, 43, 0.14);
}
.page-faq .faq-tree-link:hover {
  background: rgba(232, 182, 43, 0.14);
  border-color: rgba(232, 182, 43, 0.3);
  color: var(--gold-light);
  transform: translateX(4px);
}
.page-faq .faq-tree-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 22px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  border-radius: var(--radius-pill);
  background: rgba(232, 182, 43, 0.15);
  color: var(--gold-light);
  padding: 0 8px;
}
.page-faq .faq-sidebar-foot {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  border-top: 1px solid rgba(243, 240, 230, 0.2);
  font-size: 0.78rem;
  color: rgba(243, 240, 230, 0.7);
}
.page-faq .faq-sidebar-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold-light);
  box-shadow: 0 0 0 4px rgba(248, 213, 104, 0.16);
}

/* ===== 右侧内容区 ===== */
.page-faq .faq-section {
  padding-top: var(--space-2);
}
.page-faq .faq-section + .faq-section {
  margin-top: var(--space-5);
}
.page-faq .faq-section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.page-faq .faq-section-head .section-label {
  color: var(--pitch-green);
}
.page-faq .faq-section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  margin: 4px 0;
  color: var(--deep-pitch);
}
.page-faq .faq-section-head p {
  color: rgba(18, 28, 24, 0.62);
  font-size: 0.92rem;
}
.page-faq .faq-section-head .section-note {
  color: rgba(20, 106, 75, 0.7);
}

/* ===== 手风琴 ===== */
.page-faq .faq-item {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(217, 227, 220, 0.9);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 12px rgba(18, 28, 24, 0.05);
  margin-bottom: var(--space-2);
  overflow: hidden;
  position: relative;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.page-faq .faq-item:hover {
  transform: translateY(-2px);
}
.page-faq .faq-item[open] {
  border-color: rgba(232, 182, 43, 0.7);
  box-shadow: 0 6px 28px rgba(18, 28, 24, 0.09);
}
.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
  list-style: none;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-q {
  color: var(--deep-pitch);
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.55;
}
.page-faq .faq-icon {
  flex: none;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1.5px solid var(--gold-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: background var(--transition), transform var(--transition);
}
.page-faq .faq-icon::before,
.page-faq .faq-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--gold-primary);
  transition: background var(--transition), transform var(--transition);
}
.page-faq .faq-icon::before {
  width: 12px;
  height: 2px;
  transform: translate(-50%, -50%);
}
.page-faq .faq-icon::after {
  width: 2px;
  height: 12px;
  transform: translate(-50%, -50%);
}
.page-faq .faq-item[open] .faq-icon {
  background: var(--gold-primary);
  transform: rotate(135deg);
}
.page-faq .faq-item[open] .faq-icon::before,
.page-faq .faq-item[open] .faq-icon::after {
  background: var(--deep-pitch);
}
.page-faq .faq-a {
  padding: 0 var(--space-3) var(--space-2);
  margin: 0 var(--space-3) var(--space-3);
  border-top: 1px dashed rgba(20, 106, 75, 0.25);
  padding-top: var(--space-2);
  color: rgba(18, 28, 24, 0.78);
  font-size: 0.95rem;
  line-height: 1.8;
  animation: faqReveal 260ms ease;
}
.page-faq .faq-a a {
  color: var(--pitch-green);
  font-weight: 600;
  text-decoration-color: var(--gold-primary);
  text-underline-offset: 3px;
}

/* ===== 同步状态视觉块 ===== */
.page-faq .faq-sync-card {
  margin-top: var(--space-3);
  background: linear-gradient(135deg, var(--deep-pitch), var(--pitch-green));
  border-radius: var(--radius-xl);
  padding: var(--space-3);
  display: grid;
  gap: var(--space-2);
  color: var(--paper);
  border: 1px solid rgba(232, 182, 43, 0.3);
}
.page-faq .faq-sync-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid rgba(232, 182, 43, 0.25);
  display: block;
}
.page-faq .faq-sync-card figcaption {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.page-faq .faq-sync-card figcaption strong {
  font-size: 1.15rem;
  color: var(--gold-light);
}
.page-faq .faq-sync-card figcaption p {
  margin: 0;
  color: rgba(243, 240, 230, 0.82);
  font-size: 0.88rem;
  line-height: 1.6;
}

@keyframes faqReveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ===== 媒体查询 ===== */
@media (min-width: 720px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 1.3fr 0.9fr;
    align-items: end;
    gap: var(--space-5);
  }
  .page-faq .faq-hero-stats {
    justify-content: flex-start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-sidebar-width) minmax(0, 1fr);
    gap: var(--space-5);
    padding-top: var(--space-5);
  }
  .page-faq .faq-sidebar {
    position: sticky;
    top: 100px;
    align-self: start;
  }
  .page-faq .faq-sync-card {
    grid-template-columns: 240px 1fr;
    align-items: center;
  }
  .page-faq .faq-sync-card:hover {
    transform: rotate(-0.6deg);
  }
}