.page-faq {
  --faq-accent: var(--fluorescent-green);
  --faq-warm: var(--alert-orange);
  padding-bottom: 4rem;
  background: var(--deep-night);
}

/* 头部区域 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--abyss) 0%, var(--deep-night) 100%);
  border-bottom: 1px solid var(--line-light);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(30, 42, 74, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 42, 74, 0.18) 1px, transparent 1px);
  background-size: 38px 38px;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "?";
  position: absolute;
  right: 4%;
  top: 8%;
  font-family: var(--font-heading);
  font-size: 16rem;
  line-height: 1;
  color: rgba(0, 255, 136, 0.05);
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding: 1.25rem 0 2.5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero-copy .breadcrumb {
  margin-bottom: 1rem;
}

.page-faq .faq-hero-copy h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--text-white);
  margin: 0.5rem 0 0.9rem;
}

.page-faq .faq-hero-copy .page-lead {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.75;
  max-width: 40em;
  margin-bottom: 1.2rem;
}

.page-faq .faq-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-faq .faq-hero-figure {
  margin: 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-light);
  border-radius: 16px;
  background: var(--night-blue);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
}

/* 坐标索引 */
.page-faq .faq-index {
  background: var(--night-blue);
  border-bottom: 1px solid var(--line-light);
}

.page-faq .faq-index-grid {
  list-style: none;
  margin: 0;
  padding: 1.25rem 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.6rem;
}

.page-faq .faq-index-grid a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  color: var(--text-white);
  text-decoration: none;
  border: 1px solid var(--line-light);
  border-radius: 10px;
  transition: border-color 0.2s, background 0.2s;
}

.page-faq .faq-index-grid a:hover,
.page-faq .faq-index-grid a:focus-visible {
  border-color: var(--faq-accent);
  background: rgba(0, 255, 136, 0.06);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--faq-accent);
  letter-spacing: 0.08em;
}

.page-faq .faq-index-label {
  flex: 1;
  font-weight: 600;
  font-size: 0.92rem;
}

.page-faq .faq-index-count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  border: 1px solid var(--line-light);
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  flex-shrink: 0;
}

/* 分区主体 */
.page-faq .faq-sections {
  padding: 2.25rem 0 0.5rem;
}

.page-faq .faq-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px dashed var(--line-light);
}

.page-faq .faq-section:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-section-meta {
  border-left: 3px solid var(--faq-accent);
  padding-left: 1rem;
}

.page-faq .faq-section-num {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  line-height: 1;
  color: var(--faq-accent);
  margin-bottom: 0.4rem;
}

.page-faq .faq-section-meta .section-title {
  font-family: var(--font-heading);
  font-size: 1.55rem;
  color: var(--text-white);
  margin: 0.2rem 0;
}

.page-faq .faq-section-meta .section-desc {
  color: var(--text-dim);
  font-size: 0.88rem;
  line-height: 1.65;
  margin-top: 0.5rem;
}

/* 折叠面板 */
.page-faq .faq-panel-list {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.page-faq .faq-panel {
  border: 1px solid var(--line-light);
  border-radius: 12px;
  background: var(--night-blue);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.page-faq .faq-panel[open] {
  border-color: rgba(0, 255, 136, 0.45);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.page-faq .faq-panel summary {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 1rem 1.1rem;
  cursor: pointer;
  color: var(--text-white);
  font-weight: 600;
  font-size: 0.94rem;
  list-style: none;
  transition: background 0.2s;
}

.page-faq .faq-panel summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-panel summary:hover {
  background: rgba(0, 255, 136, 0.04);
}

.page-faq .faq-panel summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--faq-accent);
  transition: transform 0.2s;
}

.page-faq .faq-panel[open] summary::after {
  content: "−";
  color: var(--faq-warm);
}

.page-faq .faq-q-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--faq-warm);
  border: 1px solid rgba(255, 106, 0, 0.5);
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  min-width: 2em;
  text-align: center;
  flex-shrink: 0;
}

.page-faq .faq-answer {
  position: relative;
  padding: 0.1rem 1.1rem 1.2rem 2.2rem;
}

.page-faq .faq-answer::before {
  content: ">";
  position: absolute;
  left: 1.1rem;
  top: 0.4rem;
  font-family: var(--font-mono);
  color: var(--faq-accent);
  font-weight: 700;
  font-size: 0.85rem;
}

.page-faq .faq-answer p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.89rem;
  line-height: 1.75;
  max-width: 50em;
}

.page-faq .faq-answer p + p {
  margin-top: 0.5rem;
}

/* 步骤图 */
.page-faq .faq-login-steps {
  grid-column: 1 / -1;
  margin: 0;
  border: 1px solid var(--line-light);
  border-radius: 12px;
  background: var(--night-blue);
  overflow: hidden;
}

.page-faq .faq-login-steps img {
  display: block;
  width: 100%;
  height: auto;
}

/* 底部 CTA */
.page-faq .faq-widget {
  margin-top: 2.5rem;
}

.page-faq .faq-widget-card {
  background: linear-gradient(135deg, var(--night-blue) 0%, var(--abyss) 100%);
  border: 1px solid var(--line-light);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.page-faq .faq-widget-copy {
  max-width: 38em;
}

.page-faq .faq-widget-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--text-white);
  margin: 0 0 0.5rem;
}

.page-faq .faq-widget-text {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0;
}

.page-faq .faq-widget-card .btn {
  display: inline-block;
  background: var(--faq-accent);
  color: var(--deep-night);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.7rem 1.6rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}

.page-faq .faq-widget-card .btn:hover {
  background: var(--text-white);
  transform: translateY(-2px);
}

.page-faq .faq-widget-card .btn-orange {
  background: var(--faq-warm);
  color: var(--text-white);
}

.page-faq .faq-widget-card .btn-orange:hover {
  background: var(--faq-warm);
  color: var(--text-white);
}

/* 桌面端布局 */
@media (min-width: 768px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 2.5rem;
    padding: 2.25rem 0 3.25rem;
  }

  .page-faq .faq-index-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 0.75rem;
    padding: 1.5rem 0;
  }

  .page-faq .faq-index-grid a {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
    padding: 1rem 1.1rem;
  }

  .page-faq .faq-index-label {
    width: 100%;
  }

  .page-faq .faq-section {
    grid-template-columns: 0.3fr 0.7fr;
    gap: 2.25rem;
    align-items: start;
  }

  .page-faq .faq-section-meta {
    position: sticky;
    top: 1.25rem;
  }

  .page-faq .faq-widget-card {
    flex-direction: row;
    justify-content: center;
    gap: 1.5rem;
    text-align: left;
    padding: 2.25rem 2rem;
  }
}