.page-faq {
  --faq-primary: #FF6B00;
  --faq-secondary: #00B8FF;
  --faq-accent: #39FF14;
  --faq-bg: #0A0E17;
  --faq-surface: #111826;
  --faq-surface-raised: #151E30;
  --faq-text: #F5F2EB;
  --faq-muted: #B8C0CC;
  --faq-line: rgba(124, 135, 152, 0.35);
  display: block;
  width: 100%;
  background-color: var(--faq-bg);
  color: var(--faq-text);
  font-family: 'Inter', '思源黑体 Regular', sans-serif;
  line-height: 1.6;
  position: relative;
  overflow-x: clip;
}

.page-faq__breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 20px 0;
  font-size: 0.875rem;
  color: var(--faq-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-faq__breadcrumb a {
  color: var(--faq-secondary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.page-faq__breadcrumb a:hover,
.page-faq__breadcrumb a:focus-visible {
  border-bottom-color: var(--faq-secondary);
  outline: none;
}

.page-faq__breadcrumb-sep {
  color: var(--faq-muted);
  opacity: 0.5;
}

.page-faq__breadcrumb-current {
  color: var(--faq-text);
  font-weight: 500;
}

.page-faq__hero {
  position: relative;
  padding: 40px 20px 32px;
  border-bottom: 1px solid var(--faq-line);
  background:
    linear-gradient(135deg, rgba(255, 107, 0, 0.18) 0%, transparent 45%),
    linear-gradient(315deg, rgba(0, 184, 255, 0.14) 0%, transparent 40%),
    var(--faq-bg);
}

.page-faq__hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--faq-primary) 0%, var(--faq-secondary) 70%, var(--faq-accent) 100%);
  opacity: 0.8;
}

.page-faq__hero .container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-faq__hero-kicker {
  font-family: 'Rajdhani', 'Oswald', '思源黑体 Heavy', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--faq-secondary);
  text-transform: uppercase;
  margin-bottom: 10px;
  display: inline-block;
  padding: 4px 12px 4px 0;
  border-left: 3px solid var(--faq-primary);
  padding-left: 12px;
}

.page-faq__hero-title {
  font-family: 'Rajdhani', 'Oswald', '思源黑体 Heavy', sans-serif;
  font-size: clamp(1.75rem, 4.2vw, 2.75rem);
  font-weight: 800;
  font-style: italic;
  line-height: 1.12;
  letter-spacing: -0.5px;
  margin: 12px 0 16px;
  max-width: 900px;
  color: var(--faq-text);
}

.page-faq__hero-lead {
  font-size: 1rem;
  color: var(--faq-muted);
  max-width: 760px;
  margin: 0;
}

.page-faq__layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 60px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-faq__index {
  padding: 24px 0 0;
  border-bottom: 1px solid var(--faq-line);
  position: relative;
}

.page-faq__index-title {
  font-family: 'Rajdhani', 'Oswald', '思源黑体 Heavy', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0 0 16px;
  color: var(--faq-text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq__index-title::before {
  content: "";
  width: 18px;
  height: 3px;
  background: var(--faq-primary);
  display: inline-block;
}

.page-faq__index-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-faq__index-list a {
  display: block;
  padding: 8px 0;
  color: var(--faq-muted);
  text-decoration: none;
  font-size: 0.9rem;
  border-left: 2px solid transparent;
  padding-left: 12px;
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.page-faq__index-list a:hover,
.page-faq__index-list a:focus-visible {
  color: var(--faq-text);
  border-left-color: var(--faq-primary);
  transform: translateX(2px);
  outline: none;
}

.page-faq__emergency-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(57, 255, 20, 0.08);
  border: 1px solid rgba(57, 255, 20, 0.3);
  border-radius: 0;
  color: var(--faq-text);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: background-color 0.2s ease;
}

.page-faq__emergency-card:hover,
.page-faq__emergency-card:focus-visible {
  background: rgba(57, 255, 20, 0.15);
  outline: none;
}

.page-faq__emergency-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--faq-accent);
  box-shadow: 0 0 8px rgba(57, 255, 20, 0.7);
  animation: page-faq-pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

.page-faq__emergency-text {
  font-family: 'Rajdhani', 'Oswald', '思源黑体 Heavy', sans-serif;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-faq__content {
  min-width: 0;
}

.page-faq__search {
  margin: 24px 0 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-faq__search-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--faq-muted);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.page-faq__search-input {
  width: 100%;
  background: var(--faq-surface);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--faq-secondary);
  color: var(--faq-text);
  padding: 12px 14px;
  font-size: 0.9375rem;
  font-family: 'Inter', '思源黑体 Regular', sans-serif;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq__search-input:focus {
  outline: none;
  border-color: var(--faq-secondary);
  box-shadow: 0 0 0 3px rgba(0, 184, 255, 0.15);
}

.page-faq__search-input::placeholder {
  color: var(--faq-muted);
  opacity: 0.6;
}

.page-faq__accordion {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq__item {
  background: var(--faq-surface);
  border: 1px solid var(--faq-line);
  position: relative;
  transition: border-color 0.25s ease;
}

.page-faq__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: transparent;
  transition: background-color 0.25s ease;
}

.page-faq__item:hover {
  border-color: rgba(124, 135, 152, 0.6);
}

.page-faq__item[open]::before,
.page-faq__item:target::before {
  background: var(--faq-primary);
}

.page-faq__item-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 20px 16px;
  cursor: pointer;
  user-select: none;
}

.page-faq__item-head::-webkit-details-marker {
  display: none;
}

.page-faq__item-num {
  font-family: 'Rajdhani', 'Oswald', '思源黑体 Heavy', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  font-style: italic;
  color: var(--faq-primary);
  line-height: 1;
  letter-spacing: -0.5px;
  min-width: 40px;
}

.page-faq__item-title {
  font-family: 'Rajdhani', 'Oswald', '思源黑体 Heavy', sans-serif;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 700;
  margin: 0;
  flex: 1;
  min-width: 180px;
  color: var(--faq-text);
}

.page-faq__item-tag {
  font-size: 0.75rem;
  padding: 4px 10px;
  font-weight: 600;
}

.page-faq__item-tag.tag--primary {
  background: rgba(255, 107, 0, 0.15);
  color: var(--faq-primary);
  border: 1px solid rgba(255, 107, 0, 0.35);
}

.page-faq__item-tag.tag--secondary {
  background: rgba(0, 184, 255, 0.12);
  color: var(--faq-secondary);
  border: 1px solid rgba(0, 184, 255, 0.35);
}

.page-faq__item-tag.tag--accent {
  background: rgba(57, 255, 20, 0.1);
  color: var(--faq-accent);
  border: 1px solid rgba(57, 255, 20, 0.3);
}

.page-faq__item-arrow {
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--faq-muted);
  border-bottom: 2px solid var(--faq-muted);
  transform: rotate(45deg);
  transition: transform 0.25s ease;
  flex-shrink: 0;
  margin-left: auto;
}

.page-faq__item[open] .page-faq__item-arrow {
  transform: rotate(-135deg);
}

.page-faq__item-body {
  padding: 4px 16px 24px;
  border-top: 1px solid rgba(124, 135, 152, 0.15);
}

.page-faq__item[open] .page-faq__item-body {
  margin-top: 12px;
}

.page-faq__item-intro {
  font-size: 0.9375rem;
  color: var(--faq-muted);
  margin: 16px 0 20px;
}

.page-faq__step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.page-faq__step {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(124, 135, 152, 0.2);
}

.page-faq__step:last-child {
  border-bottom: none;
}

.page-faq__step-index {
  font-family: 'Rajdhani', 'Oswald', '思源黑体 Heavy', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--faq-primary);
  background: rgba(255, 107, 0, 0.12);
  padding: 4px 12px;
  height: 28px;
  white-space: nowrap;
  flex-shrink: 0;
  border-left: 2px solid var(--faq-primary);
}

.page-faq__step-content {
  flex: 1;
  min-width: 0;
}

.page-faq__step-content strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--faq-text);
  margin-bottom: 4px;
}

.page-faq__step-content p {
  font-size: 0.875rem;
  color: var(--faq-muted);
  margin: 0;
}

.page-faq__step-content a {
  color: var(--faq-secondary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq__media {
  margin: 24px 0 0;
  padding: 12px;
  background: var(--faq-surface-raised);
  border: 1px solid var(--faq-line);
}

.page-faq__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  margin: 0 auto;
  background: linear-gradient(135deg, rgba(0, 184, 255, 0.08), rgba(255, 107, 0, 0.1)), var(--faq-surface-raised);
}

.page-faq__media--square img {
  max-width: 520px;
}

.page-faq__media figcaption {
  font-size: 0.8125rem;
  color: var(--faq-muted);
  padding: 10px 4px 2px;
  text-align: center;
}

.page-faq__tip {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 22px 0 0;
  padding: 14px 16px;
  background: rgba(255, 107, 0, 0.08);
  border-left: 3px solid var(--faq-primary);
}

.page-faq__tip--blue {
  background: rgba(0, 184, 255, 0.08);
  border-left-color: var(--faq-secondary);
}

.page-faq__tip-mark {
  font-family: 'Rajdhani', 'Oswald', '思源黑体 Heavy', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--faq-primary);
  background: rgba(255, 107, 0, 0.15);
  padding: 2px 10px;
  white-space: nowrap;
  flex-shrink: 0;
}

.page-faq__tip--blue .page-faq__tip-mark {
  color: var(--faq-secondary);
  background: rgba(0, 184, 255, 0.15);
}

.page-faq__tip p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--faq-text);
}

.page-faq__tip a {
  color: var(--faq-primary);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 0, 0.4);
  transition: border-color 0.2s ease;
}

.page-faq__tip--blue a {
  color: var(--faq-secondary);
  border-bottom-color: rgba(0, 184, 255, 0.4);
}

.page-faq__tip a:hover,
.page-faq__tip a:focus-visible {
  border-bottom-color: currentColor;
  outline: none;
}

.page-faq__guide-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq__guide-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 16px;
  background: var(--faq-surface-raised);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--faq-accent);
}

.page-faq__guide-list strong {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--faq-text);
}

.page-faq__guide-list span {
  font-size: 0.875rem;
  color: var(--faq-muted);
}

.page-faq__guide-note {
  font-size: 0.875rem;
  color: var(--faq-muted);
  background: rgba(57, 255, 20, 0.05);
  border: 1px dashed rgba(57, 255, 20, 0.3);
  padding: 14px 16px;
  margin: 0;
}

.page-faq__mini-faq {
  padding: 18px 0;
  border-bottom: 1px solid rgba(124, 135, 152, 0.2);
}

.page-faq__mini-faq:last-of-type {
  border-bottom: none;
}

.page-faq__mini-faq h3 {
  font-family: 'Rajdhani', 'Oswald', '思源黑体 Heavy', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--faq-text);
  margin: 0 0 6px;
}

.page-faq__mini-faq p {
  font-size: 0.875rem;
  color: var(--faq-muted);
  margin: 0;
}

.page-faq__mini-faq a {
  color: var(--faq-secondary);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 500;
}

.page-faq__path-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 16px 0 0;
}

.page-faq__path-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--faq-surface-raised);
  border: 1px solid var(--faq-line);
  border-right: 4px solid var(--faq-secondary);
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.page-faq__path-card:hover,
.page-faq__path-card:focus-visible {
  border-color: var(--faq-secondary);
  transform: translateX(4px);
  outline: none;
}

.page-faq__path-code {
  font-family: 'Rajdhani', 'Oswald', '思源黑体 Heavy', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--faq-secondary);
}

.page-faq__path-card strong {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--faq-text);
}

.page-faq__path-card span:last-child {
  font-size: 0.8125rem;
  color: var(--faq-muted);
}

.page-faq__back-link {
  display: inline-block;
  margin: 0 20px 40px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--faq-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq__back-link:hover,
.page-faq__back-link:focus-visible {
  color: var(--faq-primary);
  border-bottom-color: var(--faq-primary);
  outline: none;
}

@keyframes page-faq-pulse {
  0%, 100% {
    box-shadow: 0 0 6px rgba(57, 255, 20, 0.5);
  }
  50% {
    box-shadow: 0 0 14px rgba(57, 255, 20, 0.9);
  }
}

@media (min-width: 700px) {
  .page-faq__hero {
    padding: 56px 20px 44px;
  }

  .page-faq__hero-title {
    font-size: clamp(2rem, 4.5vw, 3.2rem);
  }

  .page-faq__hero-lead {
    font-size: 1.0625rem;
  }

  .page-faq__step {
    padding: 20px 0;
  }

  .page-faq__step-index {
    min-width: 90px;
    text-align: center;
  }

  .page-faq__guide-list {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .page-faq__back-link {
    margin-left: 20px;
  }
}

@media (min-width: 1024px) {
  .page-faq__layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq__index {
    position: sticky;
    top: 24px;
    border-bottom: none;
    padding: 24px 0 0;
  }

  .page-faq__search {
    margin-top: 28px;
    flex-direction: row;
    align-items: center;
    gap: 16px;
  }

  .page-faq__search-label {
    flex-shrink: 0;
  }

  .page-faq__search-input {
    flex: 1;
  }

  .page-faq__item-head {
    padding: 24px 20px;
  }

  .page-faq__item-body {
    padding: 4px 20px 28px;
  }

  .page-faq__step-content p {
    font-size: 0.9375rem;
  }

  .page-faq__media {
    padding: 16px;
  }

  .page-faq__media img {
    max-height: 640px;
  }

  .page-faq__media--square img {
    max-height: 480px;
    max-width: 520px;
    margin: 0 auto;
  }

  .page-faq__back-link {
    margin-left: calc((100vw - 1200px) / 2 + 20px);
  }
}