.page-faq {
  --faq-dark: linear-gradient(135deg, #2A0A33 0%, #4A0E0E 100%);
  --faq-amber-tint: #FFF3D6;
  --faq-teal-tint: #E0FAF5;
  --faq-sidebar-w: 220px;
  --faq-text: #1A0A1E;
  --faq-text-light: #FFF2E5;
  --faq-shadow: 0 8px 24px rgba(42, 10, 51, 0.14);
  --faq-shadow-hover: 0 12px 32px rgba(42, 10, 51, 0.22);

  font-family: var(--font-body);
  color: var(--faq-text);
  background-color: var(--c-light);
  line-height: 1.65;
}

.page-faq .container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== 首屏深色区 ===== */
.page-faq .faq-hero {
  background: var(--faq-dark);
  background-image:
    radial-gradient(circle at 85% 20%, rgba(255, 107, 0, 0.28) 0%, transparent 45%),
    radial-gradient(circle at 15% 80%, rgba(0, 208, 255, 0.20) 0%, transparent 40%),
    linear-gradient(135deg, #2A0A33 0%, #4A0E0E 100%);
  padding: 48px 0 56px;
  color: var(--faq-text-light);
}

.page-faq .breadcrumb {
  margin-bottom: 28px;
}

.page-faq .breadcrumb ol {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-size: var(--text-small);
  color: rgba(255, 242, 229, 0.72);
}

.page-faq .breadcrumb a {
  color: var(--c-blue);
  text-decoration: none;
  padding: 2px 6px;
  border-radius: 4px;
}

.page-faq .breadcrumb a:hover {
  background: rgba(0, 208, 255, 0.14);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 32px;
}

.page-faq .faq-title {
  font-family: var(--font-head);
  font-size: var(--text-h1);
  font-weight: 900;
  margin: 0 0 14px;
  color: #FFF2E5;
  text-shadow: 0 0 12px rgba(0, 208, 255, 0.45), 0 4px 18px rgba(255, 107, 0, 0.3);
  letter-spacing: 0.02em;
}

.page-faq .faq-lead {
  font-size: 1.02rem;
  max-width: 30em;
  color: rgba(255, 242, 229, 0.88);
  line-height: 1.8;
  margin: 0 0 22px;
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(255, 242, 229, 0.10);
  border: 1px solid rgba(255, 242, 229, 0.18);
  border-radius: var(--radius-pill);
  padding: 5px 14px;
  font-size: var(--text-small);
  font-family: var(--font-mono);
  color: #FFF2E5;
}

.page-faq .meta-chip .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-orange);
  display: inline-block;
  box-shadow: 0 0 8px rgba(255, 106, 0, 0.80);
}

.page-faq .meta-chip .dot.teal {
  background: var(--c-teal);
  box-shadow: 0 0 8px rgba(0, 191, 166, 0.80);
}

.page-faq .meta-chip .dot.yellow {
  background: var(--c-yellow);
  box-shadow: 0 0 8px rgba(255, 195, 0, 0.80);
}

.page-faq .meta-chip .dot.pink {
  background: var(--c-pink);
  box-shadow: 0 0 8px rgba(255, 75, 140, 0.80);
}

.page-faq .faq-hero-figure img {
  width: 100%;
  max-width: 400px;
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
  object-fit: cover;
  height: auto;
}

/* ===== 主体两栏 ===== */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-top: 36px;
  padding-bottom: 64px;
}

.page-faq .faq-sidebar-inner {
  position: sticky;
  top: 20px;
}

.page-faq .faq-sidebar-label {
  font-size: var(--text-small);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #8A6D8C;
  margin: 0 0 12px;
  padding-left: 14px;
  border-left: 4px solid var(--c-orange);
}

.page-faq .faq-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  flex-wrap: wrap;
}

.page-faq .faq-nav-list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-nav-list a {
  display: block;
  padding: 8px 18px;
  background: #FFF;
  border-radius: var(--radius-pill);
  font-size: var(--text-small);
  color: #4A3A4C;
  text-decoration: none;
  border: 1px solid #E8DDE0;
  white-space: nowrap;
  transition: border-color 0.2s, background 0.2s, color 0.2s, transform 0.2s;
}

.page-faq .faq-nav-list a:hover,
.page-faq .faq-nav-list a:focus {
  border-color: var(--c-blue);
  color: var(--c-link-dark);
  transform: translateY(-1px);
}

.page-faq .faq-content {
  display: flex;
  flex-direction: column;
  gap: 40px;
  min-width: 0;
}

/* ===== 区块通用 ===== */
.page-faq .faq-section {
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  background: #FFF;
  box-shadow: var(--faq-shadow);
}

.page-faq .section-head {
  margin-bottom: 24px;
}

.page-faq .section-title {
  font-family: var(--font-head);
  font-size: var(--text-h2);
  font-weight: 800;
  color: var(--faq-text);
  margin: 0 0 8px;
}

.page-faq .section-title::before {
  content: "◆";
  color: var(--c-orange);
  margin-right: 10px;
  font-size: 0.85em;
  display: inline-block;
}

.page-faq .section-desc {
  font-size: var(--text-body);
  color: #65506A;
  margin: 0;
  line-height: 1.7;
}

.page-faq .section-amber {
  background: var(--faq-amber-tint);
}

.page-faq .section-light {
  background: var(--c-light);
}

.page-faq .section-teal {
  background: var(--faq-teal-tint);
  border: 2px solid #B2E8DE;
}

/* ===== 检索步骤卡片 ===== */
.page-faq .step-cards {
  display: grid;
  gap: 14px;
}

.page-faq .step-card {
  display: flex;
  gap: 16px;
  background: #FFF;
  border: 1px solid #EEE2E5;
  border-radius: var(--radius-md);
  padding: 20px 18px;
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
}

.page-faq .step-card:hover {
  box-shadow: var(--faq-shadow-hover);
  transform: translateY(-2px);
  border-color: var(--c-blue);
}

.page-faq .step-num {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-orange), #FF9D40);
  color: #FFF;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(255, 106, 0, 0.35);
}

.page-faq .step-body h3 {
  font-size: var(--text-h3);
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--faq-text);
}

.page-faq .step-list {
  margin: 0 0 12px;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: #4A3A4C;
  font-size: var(--text-body);
}

.page-faq .step-list li::marker {
  color: var(--c-teal);
  font-weight: 700;
}

.page-faq .step-note {
  font-size: var(--text-small);
  color: #8A6D8C;
  background: #F5F2EE;
  border-left: 3px solid var(--c-teal);
  padding: 6px 12px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 0 0 10px;
}

.page-faq .btn-ghost-sm {
  display: inline-block;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--c-teal);
  color: #00897B;
  font-size: var(--text-small);
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.page-faq .btn-ghost-sm:hover {
  background: var(--c-teal);
  color: #FFF;
}

/* ===== 设备卡片 ===== */
.page-faq .device-cards {
  display: grid;
  gap: 14px;
}

.page-faq .device-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: #FFF;
  border-radius: var(--radius-md);
  padding: 16px 18px;
  border: 1px solid #E8DDE0;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.page-faq .device-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--faq-shadow-hover);
  border-color: var(--c-blue);
}

.page-faq .device-icon {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  background: var(--c-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-orange);
}

.page-faq .device-card:nth-child(2) .device-icon {
  color: var(--c-blue);
}

.page-faq .device-card:nth-child(3) .device-icon {
  color: var(--c-amber);
}

.page-faq .device-card:nth-child(4) .device-icon {
  color: var(--c-pink);
}

.page-faq .device-info h3 {
  margin: 0 0 4px;
  font-size: var(--text-h3);
  font-weight: 700;
}

.page-faq .device-info p {
  margin: 0 0 6px;
  font-size: var(--text-body);
  color: #4A3A4C;
}

.page-faq .path-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-small);
  background: #F0FDFA;
  color: #00897B;
  border: 1px solid #BEE9E0;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
}

.page-faq .device-strip-figure {
  margin: 18px 0 0;
}

.page-faq .device-strip-figure img {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid #E8DDE0;
  object-fit: cover;
}

/* ===== FAQ 折叠 ===== */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  background: #FFF;
  border: 1px solid #E8DDE0;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 600;
  color: var(--faq-text);
  text-align: left;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.page-faq .faq-question:hover,
.page-faq .faq-question[aria-selected="true"] {
  border-color: var(--c-blue);
  box-shadow: 0 4px 14px rgba(0, 208, 255, 0.16);
}

.page-faq .q-mark {
  flex: 0 0 auto;
  min-width: 34px;
  height: 22px;
  border-radius: var(--radius-pill);
  background: var(--c-orange);
  color: #FFF;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  letter-spacing: 0.04em;
}

.page-faq .faq-question:nth-child(3) .q-mark,
.page-faq .faq-question:nth-child(5) .q-mark {
  background: var(--c-teal);
}

.page-faq .q-text {
  flex: 1;
}

.page-faq .q-arrow {
  flex: 0 0 auto;
  font-size: 1.2rem;
  color: var(--c-orange);
  transition: transform 0.25s;
  display: inline-block;
}

.page-faq .faq-question[aria-selected="true"] .q-arrow {
  transform: rotate(180deg);
}

.page-faq .faq-answer {
  background: #FFFDF8;
  border: 1px solid #E8DDE0;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  border-top: none;
  padding: 16px 20px;
  color: #4A3A4C;
  font-size: var(--text-body);
  line-height: 1.8;
  margin-top: -4px;
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
}

.page-faq .faq-answer p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-answer a {
  color: var(--c-link-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-answer strong {
  color: var(--c-pink);
}

.page-faq .btn-primary-sm {
  display: inline-block;
  margin-top: 10px;
  padding: 7px 18px;
  background: var(--c-orange);
  color: #FFF;
  border-radius: var(--radius-pill);
  font-size: var(--text-small);
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}

.page-faq .btn-primary-sm:hover {
  background: #E85D00;
  transform: translateY(-1px);
}

.page-faq .version-figure,
.page-faq .feedback-flow-figure {
  margin: 20px 0 0;
  text-align: center;
}

.page-faq .version-figure img {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: var(--radius-md);
  object-fit: cover;
  border: 1px solid #E0D4D8;
}

.page-faq .feedback-flow-figure img {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: var(--radius-md);
  object-fit: cover;
  border: 1px solid #B2E8DE;
}

/* ===== 底部导航胶囊 ===== */
.page-faq .faq-bottom-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  padding-top: 8px;
}

.page-faq .faq-bottom-nav a {
  display: inline-block;
  padding: 10px 26px;
  background: linear-gradient(135deg, #2A0A33, #4A0E0E);
  color: #FFF2E5;
  border-radius: var(--radius-pill);
  font-size: var(--text-body);
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.page-faq .faq-bottom-nav a:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(42, 10, 51, 0.3);
}

.page-faq .faq-bottom-nav a:nth-child(2) {
  background: linear-gradient(135deg, var(--c-teal), #00917C);
}

.page-faq .faq-bottom-nav a:nth-child(3) {
  background: linear-gradient(135deg, var(--c-orange), #E85D00);
}

.page-faq .inline-code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: #F0F4F5;
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--c-link-dark);
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 56px 0 64px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: 1fr 340px;
    align-items: center;
  }

  .page-faq .faq-hero-figure {
    display: block;
  }

  .page-faq .faq-body {
    grid-template-columns: var(--faq-sidebar-w) 1fr;
    gap: 40px;
    padding-top: 44px;
    padding-bottom: 80px;
  }

  .page-faq .faq-nav-list {
    flex-direction: column;
    gap: 8px;
    overflow: visible;
    flex-wrap: nowrap;
  }

  .page-faq .faq-nav-list a {
    white-space: normal;
    border-radius: var(--radius-md);
    padding: 10px 16px;
  }

  .page-faq .faq-content {
    gap: 44px;
  }

  .page-faq .faq-section {
    padding: 36px 32px;
    border-radius: var(--radius-lg);
  }

  .page-faq .step-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .page-faq .device-cards {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
}

@media (min-width: 992px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 1fr 400px;
  }

  .page-faq .step-cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .step-card {
    flex-direction: column;
    gap: 14px;
  }

  .page-faq .step-num {
    width: 50px;
    height: 50px;
  }

  .page-faq .device-cards {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .device-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-faq .device-icon {
    margin-bottom: 6px;
  }
}