/* ===== 页面：faq – 支持中心 ===== */
.page-faq {
  --faq-accent: #e85d3a;
  --faq-primary: #1b3a5c;
  --faq-success: #5bbd5e;
  --faq-text: #2c2520;
  --faq-text-secondary: #7a6e61;
  --faq-bg-card: #f5f0e8;
  --faq-border: rgba(44,37,32,0.12);
  --faq-radius: 0;
  --faq-step-gap: 1.5rem;
  --faq-panel-padding: 1.25rem;
  --faq-icon-size: 64px;

  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 1rem 1rem 2rem;
  color: var(--faq-text);
  font-family: var(--font-body, sans-serif);
  line-height: 1.6;
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: var(--font-size-sm, 0.875rem);
  color: var(--faq-text-secondary);
  padding: 0.5rem 0 0;
  border-bottom: 1px solid var(--faq-border);
  margin-bottom: 0.25rem;
}
.page-faq .breadcrumb-item {
  color: var(--faq-text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-faq .breadcrumb-item:hover,
.page-faq .breadcrumb-item:focus-visible {
  color: var(--faq-accent);
}
.page-faq .breadcrumb-item.is-current {
  color: var(--faq-text);
  font-weight: var(--font-weight-bold, 700);
  pointer-events: none;
}
.page-faq .breadcrumb-separator {
  color: var(--faq-border);
  user-select: none;
}

/* ===== 首屏引导区 ===== */
.page-faq .faq-hero {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem 0 0.5rem;
  border-bottom: 2px solid var(--faq-primary);
}
.page-faq .faq-hero-img {
  width: 100%;
  max-width: 600px;
  height: auto;
  aspect-ratio: 600 / 200;
  object-fit: cover;
  border: 1px solid var(--faq-border);
  background: var(--faq-bg-card);
}
.page-faq .faq-hero-text {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.page-faq .faq-hero-title {
  font-family: var(--font-heading, sans-serif);
  font-weight: var(--font-weight-bold, 700);
  font-size: var(--font-size-2xl, 2rem);
  line-height: 1.2;
  margin: 0;
  color: var(--faq-primary);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.page-faq .faq-hero-sub {
  font-size: var(--font-size-md, 1.125rem);
  font-weight: var(--font-weight-light, 300);
  color: var(--faq-text-secondary);
  font-family: var(--font-mono, monospace);
  letter-spacing: 0.02em;
}
.page-faq .faq-hero-desc {
  font-size: var(--font-size-base, 1rem);
  color: var(--faq-text);
  margin: 0;
  max-width: 640px;
}

/* ===== 区域标题 ===== */
.page-faq .faq-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.page-faq .faq-section-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.5rem 0 0.25rem;
  border-bottom: 1px solid var(--faq-border);
}
.page-faq .faq-section-number {
  font-family: var(--font-mono, monospace);
  font-size: var(--font-size-xl, 1.5rem);
  font-weight: var(--font-weight-bold, 700);
  color: var(--faq-accent);
  line-height: 1;
  flex-shrink: 0;
}
.page-faq .faq-section-title {
  font-family: var(--font-heading, sans-serif);
  font-weight: var(--font-weight-bold, 700);
  font-size: var(--font-size-lg, 1.25rem);
  margin: 0;
  color: var(--faq-primary);
}

/* ===== 可折叠面板 ===== */
.page-faq .faq-panel {
  border: 1px solid var(--faq-border);
  background: var(--faq-bg-card);
  transition: border-color 0.25s ease;
}
.page-faq .faq-panel[open] {
  border-color: var(--faq-primary);
}
.page-faq .faq-panel-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: var(--faq-panel-padding);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading, sans-serif);
  font-weight: var(--font-weight-bold, 700);
  font-size: var(--font-size-base, 1rem);
  color: var(--faq-primary);
  user-select: none;
  transition: background 0.2s ease;
}
.page-faq .faq-panel-summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-panel-summary:hover,
.page-faq .faq-panel-summary:focus-visible {
  background: rgba(27,58,92,0.04);
}
.page-faq .faq-panel-summary-text {
  flex: 1;
}
.page-faq .faq-panel-icon {
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  position: relative;
  transition: transform 0.3s var(--easing, ease);
}
.page-faq .faq-panel-icon::before,
.page-faq .faq-panel-icon::after {
  content: "";
  position: absolute;
  background: var(--faq-primary);
  border-radius: 1px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.page-faq .faq-panel-icon::before {
  width: 2px;
  height: 100%;
}
.page-faq .faq-panel-icon::after {
  width: 100%;
  height: 2px;
}
.page-faq .faq-panel[open] .faq-panel-icon {
  transform: rotate(45deg);
}
.page-faq .faq-panel-body {
  padding: 0 var(--faq-panel-padding) var(--faq-panel-padding);
  animation: faq-fade-in 0.3s ease;
}

@keyframes faq-fade-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 小面板（其他常见问题） */
.page-faq .faq-panel-sm {
  margin-bottom: 0.5rem;
}
.page-faq .faq-panel-sm .faq-panel-summary {
  padding: 0.875rem var(--faq-panel-padding);
  font-size: var(--font-size-base, 1rem);
}
.page-faq .faq-panel-sm .faq-panel-body {
  padding: 0.25rem var(--faq-panel-padding) 1rem;
  font-size: var(--font-size-sm, 0.875rem);
  color: var(--faq-text);
}
.page-faq .faq-panel-sm .faq-panel-body a {
  color: var(--faq-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-faq .faq-panel-sm .faq-panel-body a:hover {
  color: var(--faq-primary);
}

/* ===== 步骤列表 ===== */
.page-faq .faq-steps {
  display: flex;
  flex-direction: column;
  gap: var(--faq-step-gap);
  list-style: none;
  counter-reset: faq-step-counter;
  margin: 0.5rem 0 0;
  padding: 0;
}
.page-faq .faq-step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  counter-increment: faq-step-counter;
  position: relative;
  padding: 1rem 1rem 1rem 2.5rem;
  background: rgba(255,255,255,0.5);
  border: 1px solid var(--faq-border);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.page-faq .faq-step:hover {
  border-color: var(--faq-primary);
  box-shadow: 0 2px 8px rgba(27,58,92,0.06);
}
.page-faq .faq-step::before {
  content: counter(faq-step-counter);
  position: absolute;
  left: 0.75rem;
  top: 1rem;
  font-family: var(--font-mono, monospace);
  font-weight: var(--font-weight-bold, 700);
  font-size: var(--font-size-sm, 0.875rem);
  color: var(--faq-accent);
  line-height: 1;
}
.page-faq .faq-step-icon {
  flex-shrink: 0;
  width: var(--faq-icon-size);
  height: var(--faq-icon-size);
  object-fit: cover;
  border: 1px solid var(--faq-border);
  background: var(--faq-bg-card);
}
.page-faq .faq-step-content {
  flex: 1;
  min-width: 0;
}
.page-faq .faq-step-title {
  font-family: var(--font-heading, sans-serif);
  font-weight: var(--font-weight-bold, 700);
  font-size: var(--font-size-base, 1rem);
  margin: 0 0 0.25rem;
  color: var(--faq-primary);
}
.page-faq .faq-step-desc {
  font-size: var(--font-size-sm, 0.875rem);
  color: var(--faq-text);
  margin: 0;
  line-height: 1.6;
}
.page-faq .faq-step-footnote {
  font-size: var(--font-size-sm, 0.875rem);
  color: var(--faq-text-secondary);
  margin: 1rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--faq-border);
}
.page-faq .faq-step-footnote a {
  color: var(--faq-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-faq .faq-step-footnote a:hover {
  color: var(--faq-primary);
}

/* ===== 联系支持卡片 ===== */
.page-faq .faq-contact {
  margin-top: 1rem;
}
.page-faq .faq-contact-card {
  background: var(--faq-primary);
  color: #ffffff;
  padding: 2rem 1.5rem;
  border: 1px solid var(--faq-border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: center;
}
.page-faq .faq-contact-title {
  font-family: var(--font-heading, sans-serif);
  font-weight: var(--font-weight-bold, 700);
  font-size: var(--font-size-xl, 1.5rem);
  margin: 0;
  color: #ffffff;
}
.page-faq .faq-contact-desc {
  font-size: var(--font-size-base, 1rem);
  margin: 0;
  color: rgba(255,255,255,0.85);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}
.page-faq .faq-contact-info {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1.5rem;
  font-size: var(--font-size-sm, 0.875rem);
  color: rgba(255,255,255,0.9);
}
.page-faq .faq-contact-item {
  font-family: var(--font-mono, monospace);
  letter-spacing: 0.02em;
  background: rgba(255,255,255,0.1);
  padding: 0.375rem 0.75rem;
  border: 1px solid rgba(255,255,255,0.2);
}
.page-faq .faq-contact .btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: center;
  background: var(--faq-accent);
  color: #ffffff;
  border: none;
  padding: 0.75rem 2rem;
  font-family: var(--font-heading, sans-serif);
  font-weight: var(--font-weight-bold, 700);
  font-size: var(--font-size-base, 1rem);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.15s ease;
}
.page-faq .faq-contact .btn-primary:hover,
.page-faq .faq-contact .btn-primary:focus-visible {
  background: #c94d2e;
  transform: translateY(-1px);
}

/* ===== 响应式：桌面端 ≥ 768px ===== */
@media (min-width: 768px) {
  .page-faq {
    padding: 1.5rem 2rem 3rem;
    gap: 2.5rem;
  }
  .page-faq .faq-hero {
    flex-direction: row;
    align-items: center;
    gap: 2rem;
    padding: 2rem 0 1rem;
  }
  .page-faq .faq-hero-img {
    max-width: 480px;
    flex-shrink: 0;
  }
  .page-faq .faq-hero-title {
    font-size: var(--font-size-3xl, 2.5rem);
  }
  .page-faq .faq-hero-sub {
    font-size: var(--font-size-lg, 1.25rem);
  }
  .page-faq .faq-section {
    gap: 1rem;
  }
  .page-faq .faq-section-number {
    font-size: var(--font-size-2xl, 2rem);
  }
  .page-faq .faq-section-title {
    font-size: var(--font-size-xl, 1.5rem);
  }
  .page-faq .faq-panel-summary {
    padding: 1.25rem 1.5rem;
    font-size: var(--font-size-md, 1.125rem);
  }
  .page-faq .faq-panel-body {
    padding: 0 1.5rem 1.5rem;
  }
  .page-faq .faq-panel-sm .faq-panel-summary {
    padding: 1rem 1.5rem;
  }
  .page-faq .faq-panel-sm .faq-panel-body {
    padding: 0.25rem 1.5rem 1.25rem;
  }
  .page-faq .faq-step {
    padding: 1.25rem 1.5rem 1.25rem 3rem;
    gap: 1.25rem;
  }
  .page-faq .faq-step::before {
    left: 1rem;
    top: 1.25rem;
    font-size: var(--font-size-base, 1rem);
  }
  .page-faq .faq-step-icon {
    --faq-icon-size: 72px;
  }
  .page-faq .faq-step-title {
    font-size: var(--font-size-md, 1.125rem);
  }
  .page-faq .faq-step-desc {
    font-size: var(--font-size-base, 1rem);
  }
  .page-faq .faq-contact-card {
    padding: 2.5rem 3rem;
    gap: 1.25rem;
  }
  .page-faq .faq-contact-title {
    font-size: var(--font-size-2xl, 2rem);
  }
  .page-faq .faq-contact-info {
    gap: 1rem 2rem;
    font-size: var(--font-size-base, 1rem);
  }
}

/* ===== 桌面宽屏 ≥ 1024px ===== */
@media (min-width: 1024px) {
  .page-faq {
    padding: 2rem 3rem 4rem;
  }
  .page-faq .faq-hero-img {
    max-width: 560px;
  }
  .page-faq .faq-steps {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  .page-faq .faq-step {
    break-inside: avoid;
  }
  .page-faq .faq-step-footnote {
    grid-column: 1 / -1;
  }
}
</PAGE_CSS>