/* ========== 支持中心页面专属样式 ========== */
.page-faq {
  --faq-accent-glow: rgba(255, 107, 53, 0.08);
  --faq-blue-glow: rgba(0, 212, 255, 0.06);
  background:
    radial-gradient(ellipse 90% 55% at 15% 0%, var(--faq-accent-glow), transparent 60%),
    radial-gradient(ellipse 70% 45% at 95% 12%, var(--faq-blue-glow), transparent 55%);
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 0 0 18px;
  font-size: 14px;
  color: var(--text-muted);
}
.page-faq .breadcrumb a {
  color: var(--accent-2);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-faq .breadcrumb a:hover {
  color: var(--gold);
  text-decoration: underline;
}

/* ===== Hero 区域 ===== */
.page-faq .faq-hero {
  display: grid;
  gap: 28px;
  padding: 32px 0 44px;
}
.page-faq .faq-hero-copy .section-kicker {
  margin-bottom: 12px;
}
.page-faq .faq-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(32px, 6vw, 58px);
  line-height: 1.12;
  margin: 0 0 18px;
  letter-spacing: 0.01em;
  text-wrap: balance;
}
.page-faq .faq-hero-desc {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-muted);
  max-width: 56ch;
}

/* Hero 统计数字 */
.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.page-faq .faq-stat-item {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 14px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.page-faq .faq-stat-item:hover {
  border-color: rgba(0, 212, 255, 0.4);
  transform: translateY(-2px);
}
.page-faq .faq-stat-item::after {
  content: "";
  position: absolute;
  right: -22px;
  top: -22px;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, transparent, rgba(0, 212, 255, 0.12));
  border-radius: 50%;
  pointer-events: none;
}
.page-faq .faq-stat-item .stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-2);
  line-height: 1.2;
}
.page-faq .faq-stat-label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== 三列核心布局 ===== */
.page-faq .faq-grid {
  display: grid;
  gap: 20px;
  margin-top: 12px;
}
.page-faq .faq-panel {
  height: 100%;
  padding: 28px 22px;
  position: relative;
  display: flex;
  flex-direction: column;
}
.page-faq .faq-panel .section-kicker {
  margin-bottom: 8px;
}
.page-faq .faq-panel h2 {
  font-family: var(--font-heading);
  font-size: clamp(22px, 3.2vw, 28px);
  margin: 0 0 12px;
  line-height: 1.2;
}
.page-faq .faq-section-desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 0 0 24px;
}

/* ===== 新手指引步骤条 ===== */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-faq .faq-step {
  position: relative;
  padding: 0 0 28px 56px;
}
.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 46px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), rgba(0, 212, 255, 0.35));
  border-radius: 2px;
}
.page-faq .faq-step:last-child {
  padding-bottom: 4px;
}
.page-faq .faq-step:last-child::before {
  display: none;
}
.page-faq .faq-step-num {
  position: absolute;
  left: 0;
  top: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #ff9a5f);
  color: var(--bg-main);
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(255, 107, 53, 0.3);
  border: 2px solid rgba(255, 255, 255, 0.12);
}
.page-faq .faq-step-body h3 {
  font-family: var(--font-heading);
  font-size: 17px;
  margin: 0 0 6px;
  letter-spacing: 0.02em;
  line-height: 1.35;
}
.page-faq .faq-step-body p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 0;
}

/* ===== 设备适配列表 ===== */
.page-faq .faq-device-list {
  list-style: none;
  margin: 0 0 8px;
  padding: 0;
}
.page-faq .faq-device-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-color);
}
.page-faq .faq-device-item:last-child {
  border-bottom: none;
}
.page-faq .faq-device-icon {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  color: var(--accent-2);
  transition: color 0.25s ease, transform 0.25s ease;
}
.page-faq .faq-device-item:hover .faq-device-icon {
  color: var(--accent);
  transform: translateY(-2px);
}
.page-faq .faq-device-item h3 {
  font-size: 16px;
  margin: 0 0 4px;
  font-weight: 700;
}
.page-faq .faq-device-item p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0;
}
.page-faq .faq-device-more {
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}
.page-faq .faq-device-more a {
  color: var(--accent-2);
  text-decoration: none;
}
.page-faq .faq-device-more a:hover {
  text-decoration: underline;
}

/* ===== 常见问题手风琴 ===== */
.page-faq .faq-accordion {
  display: grid;
  gap: 12px;
}
.page-faq .faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: rgba(13, 27, 42, 0.6);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.page-faq .faq-item[open] {
  border-color: rgba(0, 212, 255, 0.45);
  box-shadow: 0 0 0 1px rgba(0, 212, 255, 0.12), 0 10px 30px rgba(0, 212, 255, 0.06);
}
.page-faq .faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 18px 46px 18px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  position: relative;
  line-height: 1.4;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary::marker {
  content: "";
}
.page-faq .faq-item summary::before {
  content: "";
  flex: 0 0 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-2);
  opacity: 0.9;
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.35);
}
.page-faq .faq-item[open] summary::before {
  background: var(--accent);
  box-shadow: 0 0 10px rgba(255, 107, 53, 0.45);
}
.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  line-height: 1;
  color: var(--accent);
  font-weight: 400;
  transition: transform 0.3s ease;
}
.page-faq .faq-item[open] summary::after {
  content: "−";
}
.page-faq .faq-answer {
  padding: 0 18px 20px 36px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
}
.page-faq .faq-answer p {
  margin: 0 0 8px;
}
.page-faq .faq-answer p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-answer a {
  color: var(--accent-2);
  text-decoration: none;
}
.page-faq .faq-answer a:hover {
  text-decoration: underline;
}

/* ===== 媒体框架 ===== */
.page-faq .media-frame {
  margin-top: 24px;
}
.page-faq .media-frame img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
  display: block;
}
.page-faq .media-frame-label {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
}

/* ===== 底部联系 CTA ===== */
.page-faq .faq-contact-cta {
  margin-top: 28px;
  padding-bottom: 48px;
}
.page-faq .faq-contact-panel {
  background: linear-gradient(135deg, var(--bg-panel) 0%, #16213a 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  display: grid;
  gap: 20px;
  position: relative;
  overflow: hidden;
}
.page-faq .faq-contact-panel::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.1), transparent 70%);
  pointer-events: none;
}
.page-faq .faq-contact-panel::after {
  content: "";
  position: absolute;
  left: -40px;
  bottom: -40px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.07), transparent 70%);
  pointer-events: none;
}
.page-faq .faq-contact-copy h2 {
  font-family: var(--font-heading);
  font-size: 24px;
  margin: 0 0 10px;
  line-height: 1.25;
}
.page-faq .faq-contact-copy p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 0;
}
.page-faq .faq-contact-copy strong {
  color: var(--text-main);
  font-weight: 600;
}
.page-faq .faq-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  position: relative;
  z-index: 1;
}

/* ===== 平板断点 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 40px 0 52px;
  }
  .page-faq .faq-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-faq .faq-guide-panel {
    grid-column: 1 / -1;
  }
  .page-faq .faq-steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0 24px;
  }
  .page-faq .faq-step:nth-child(2)::before,
  .page-faq .faq-step:nth-child(3)::before {
    bottom: auto;
    height: calc(100% - 46px);
  }
  .page-faq .faq-step:nth-child(2)::before {
    top: 46px;
  }
  .page-faq .faq-step:nth-child(3)::before {
    top: 46px;
  }
  .page-faq .faq-step:nth-child(4)::before {
    display: none;
  }
  .page-faq .faq-contact-panel {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
  .page-faq .faq-contact-actions {
    justify-content: flex-end;
  }
}

/* ===== 桌面断点 ===== */
@media (min-width: 1024px) {
  .page-faq .faq-hero {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: end;
    gap: 48px;
    padding: 56px 0 56px;
  }
  .page-faq .faq-hero-desc {
    font-size: 17px;
  }
  .page-faq .faq-hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-faq .faq-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.9fr) minmax(0, 1.15fr);
    gap: 24px;
  }
  .page-faq .faq-guide-panel {
    grid-column: auto;
  }
  .page-faq .faq-panel {
    padding: 36px 28px;
  }
  .page-faq .faq-steps {
    display: block;
  }
  .page-faq .faq-step:nth-child(2)::before,
  .page-faq .faq-step:nth-child(3)::before {
    top: 46px;
    bottom: 4px;
    height: auto;
  }
  .page-faq .faq-step:nth-child(4)::before {
    display: block;
  }
  .page-faq .faq-step:last-child::before {
    display: none;
  }
  .page-faq .faq-contact-cta {
    margin-top: 40px;
  }
  .page-faq .faq-contact-panel {
    grid-template-columns: 1fr auto;
    padding: 40px 44px;
  }
}

/* ===== 大屏微调 ===== */
@media (min-width: 1440px) {
  .page-faq .faq-panel {
    padding: 44px 36px;
  }
  .page-faq .faq-hero {
    padding: 64px 0 64px;
  }
}