.page-faq {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 36px 20px 80px;
  color: var(--text);
  font-family: var(--font-body);
  background: var(--bg);
  overflow-x: hidden;
}

/* ===== 首屏 ===== */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 28px 0 40px;
  position: relative;
}
.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(155, 92, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(155, 92, 255, 0.06) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
}
.page-faq .faq-hero-text,
.page-faq .faq-hero-visual {
  position: relative;
  z-index: 1;
}
.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-size: 0.875rem;
  color: var(--text-dim);
}
.page-faq .faq-crumb a {
  color: var(--accent-2);
  text-decoration: none;
}
.page-faq .faq-crumb a:hover {
  color: var(--accent);
  text-decoration: underline;
}
.page-faq .faq-clock-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-dim);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
}
.page-faq .faq-clock-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
}
.page-faq .faq-eyebrow {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin: 0 0 10px;
  transform: skewX(-2deg);
}
.page-faq .faq-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.08;
  margin: 0 0 16px;
  transform: skewX(-2deg);
  color: var(--text);
}
.page-faq .faq-lead {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-dim);
  margin: 0 0 22px;
  max-width: 52ch;
}
.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  padding: 14px 16px;
  max-width: 460px;
  color: var(--text-dim);
}
.page-faq .faq-search svg {
  flex-shrink: 0;
  color: var(--accent);
}
.page-faq .faq-search-tag {
  margin-left: auto;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.75rem;
  color: #0a0f1e;
  background: var(--accent);
  border-radius: 4px;
  padding: 2px 8px;
}
.page-faq .faq-hero-note {
  margin: 16px 0 0;
  font-size: 0.875rem;
  color: var(--text-dim);
}
.page-faq .faq-hero-note::before {
  content: '●';
  color: var(--success);
  margin-right: 6px;
  font-size: 0.625rem;
  vertical-align: middle;
}
.page-faq .faq-hero-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  object-fit: cover;
  transform: rotate(2deg) skewX(-2deg);
  box-shadow: 14px 14px 0 rgba(155, 92, 255, 0.12);
}

/* ===== 分类标签 ===== */
.page-faq .faq-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 12px 0 36px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 44px;
}
.page-faq .faq-cat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8125rem;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  text-decoration: none;
  transform: skewX(-2deg);
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.page-faq .faq-cat span {
  color: var(--accent-2);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
}
.page-faq .faq-cat:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--bg-soft);
}

/* ===== 分区通用 ===== */
.page-faq .faq-section {
  margin-bottom: 52px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 18px 28px;
  position: relative;
  overflow: hidden;
}
.page-faq .faq-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
}
.page-faq .faq-section-data::before {
  background: var(--accent-2);
}
.page-faq .faq-section-transfer::before {
  background: var(--alert);
}
.page-faq .faq-section-accuracy::before {
  background: var(--success);
}
.page-faq .faq-section-contact::before {
  background: var(--accent-2);
}
.page-faq .faq-section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 14px;
  margin-bottom: 22px;
}
.page-faq .faq-section-num {
  grid-row: span 2;
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
}
.page-faq .faq-section-data .faq-section-num {
  color: var(--accent-2);
}
.page-faq .faq-section-transfer .faq-section-num {
  color: var(--alert);
}
.page-faq .faq-section-accuracy .faq-section-num {
  color: var(--success);
}
.page-faq .faq-section-contact .faq-section-num {
  color: var(--accent-2);
}
.page-faq .faq-section-head h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0;
  transform: skewX(-2deg);
}
.page-faq .faq-section-head p {
  grid-column: 2;
  margin: 0;
  color: var(--text-dim);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* ===== 手风琴 ===== */
.page-faq .faq-acc {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.page-faq .faq-item {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color 0.18s ease, background 0.18s ease;
}
.page-faq .faq-item:hover {
  border-color: var(--accent-2);
  background: #0d1425;
}
.page-faq .faq-item[open] {
  border-color: var(--accent);
}
.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--text);
  font-weight: 600;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.4;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-q-num {
  flex-shrink: 0;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--accent-2);
  background: rgba(155, 92, 255, 0.12);
  border-radius: 6px;
  padding: 4px 8px;
  text-align: center;
  min-width: 34px;
}
.page-faq .faq-item[open] .faq-q-num {
  color: #0a0f1e;
  background: var(--accent);
}
.page-faq .faq-item summary::after {
  content: '+';
  margin-left: auto;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-dim);
  line-height: 1;
  transition: transform 0.18s ease, color 0.18s ease;
}
.page-faq .faq-item[open] summary::after {
  content: '−';
  color: var(--accent);
}
.page-faq .faq-a {
  padding: 0 16px 18px 66px;
  color: var(--text);
  font-size: 0.875rem;
  line-height: 1.7;
}
.page-faq .faq-a p {
  margin: 0 0 8px;
}
.page-faq .faq-a p:last-child {
  margin: 0;
}
.page-faq .faq-a a {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-faq .faq-a a:hover {
  color: var(--accent);
}

/* ===== 下载区设备图 ===== */
.page-faq .faq-device-visual {
  margin-top: 24px;
  text-align: center;
}
.page-faq .faq-device-visual img {
  max-width: 100%;
  width: 300px;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-soft);
  object-fit: cover;
}
.page-faq .faq-img-caption {
  margin: 10px 0 0;
  font-size: 0.8125rem;
  color: var(--text-dim);
}

/* ===== 联系方式 ===== */
.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-faq .faq-contact-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-2);
  border-radius: var(--radius);
  padding: 18px 16px;
}
.page-faq .faq-contact-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--accent);
  transform: skewX(-2deg);
}
.page-faq .faq-contact-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 6px;
  word-break: break-all;
}
.page-faq .faq-contact-card p:last-child {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.8125rem;
}
.page-faq .faq-contact-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.page-faq .faq-contact-cta .btn {
  text-decoration: none;
}

/* ===== 桌面端增强 ===== */
@media (min-width: 768px) {
  .page-faq {
    padding: 48px 32px 96px;
  }
  .page-faq .faq-hero {
    grid-template-columns: 1.3fr 1fr;
    align-items: center;
    gap: 44px;
    padding: 40px 0 56px;
  }
  .page-faq .faq-section {
    padding: 32px 28px 36px;
  }
  .page-faq .faq-contact-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-faq .faq-section-download {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 28px;
  }
  .page-faq .faq-section-download .faq-section-head,
  .page-faq .faq-section-download .faq-acc {
    grid-column: 1;
  }
  .page-faq .faq-device-visual {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
    margin-top: 0;
    text-align: center;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    grid-template-columns: 1.4fr 1fr;
    gap: 56px;
  }
  .page-faq .faq-cats {
    gap: 14px;
  }
  .page-faq .faq-cat {
    font-size: 0.875rem;
    padding: 10px 20px;
  }
  .page-faq .faq-section-head h2 {
    font-size: 1.8rem;
  }
  .page-faq .faq-acc {
    gap: 14px;
  }
}