.page-faq {
  --faq-glow: rgba(123, 45, 223, 0.15);
  --faq-orange-dim: rgba(255, 107, 53, 0.12);
  background: var(--bg-deep);
  color: var(--text-main);
}

/* ===== 面包屑 ===== */
.page-faq .breadcrumb {
  border-bottom: 1px solid var(--border-color);
  background: rgba(8, 11, 26, 0.6);
}
.page-faq .breadcrumb-list {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 14px 0;
  list-style: none;
}
.page-faq .breadcrumb-list li {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-sub);
}
.page-faq .breadcrumb-list li + li::before {
  content: "/";
  margin: 0 10px;
  color: var(--border-color);
}
.page-faq .breadcrumb-list a {
  color: var(--text-sub);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-faq .breadcrumb-list a:hover,
.page-faq .breadcrumb-list a:focus-visible {
  color: var(--orange);
}

/* ===== 注册指引英雄区 ===== */
.page-faq .faq-hero {
  position: relative;
  padding: 48px 0 64px;
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 420px 260px at 15% 6%, rgba(30, 58, 138, 0.38), transparent 70%),
    radial-gradient(ellipse 360px 220px at 88% 20%, rgba(123, 45, 223, 0.2), transparent 70%);
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background-image:
    linear-gradient(rgba(123, 45, 223, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(123, 45, 223, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
  -webkit-mask-image: radial-gradient(circle at top right, black, transparent 72%);
  mask-image: radial-gradient(circle at top right, black, transparent 72%);
  pointer-events: none;
}
.page-faq .faq-hero .container {
  position: relative;
}
.page-faq .faq-hero-row {
  display: grid;
  gap: 40px;
  align-items: center;
  margin-bottom: 44px;
}
.page-faq .faq-hero-head {
  margin-bottom: 16px;
}
.page-faq .faq-hero-lead {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-sub);
  margin: 0 0 28px;
  max-width: 56ch;
}
.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}
.page-faq .faq-hero-stat {
  flex: 1 1 100px;
  background: rgba(17, 26, 58, 0.72);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}
.page-faq .faq-hero-stat-num {
  display: block;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 26px;
  color: var(--text-main);
  line-height: 1.2;
}
.page-faq .faq-hero-stat-label {
  display: block;
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 13px;
  color: var(--text-sub);
  margin-top: 4px;
}
.page-faq .faq-hero-action {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero-figure {
  margin: 0;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-strong);
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.4), rgba(123, 45, 223, 0.22));
  position: relative;
}
.page-faq .faq-hero-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 68%, rgba(123, 45, 223, 0.14) 100%);
  pointer-events: none;
}
.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ===== 注册步骤条 ===== */
.page-faq .faq-steps {
  display: flex;
  flex-direction: column;
}
.page-faq .faq-step {
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.page-faq .faq-step:hover,
.page-faq .faq-step:focus-within {
  border-color: var(--purple);
  box-shadow: 0 0 26px var(--faq-glow);
}
.page-faq .faq-step-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.page-faq .faq-step-num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--purple);
  line-height: 1;
  transition: color 0.25s ease;
}
.page-faq .faq-step:hover .faq-step-num {
  color: var(--orange);
}
.page-faq .faq-step-title {
  font-family: var(--font-headline);
  font-size: 20px;
  font-weight: 900;
  margin: 0 0 6px;
  letter-spacing: 0.02em;
}
.page-faq .faq-step-desc {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin: 0;
}
.page-faq .faq-step-axis {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  flex-shrink: 0;
}
.page-faq .faq-step-axis span {
  display: block;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, var(--purple), rgba(123, 45, 223, 0.12));
  position: relative;
}
.page-faq .faq-step-axis span::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 50%;
  width: 8px;
  height: 8px;
  transform: translateX(-50%) rotate(45deg);
  background: var(--purple);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

/* ===== 主题目录区 ===== */
.page-faq .faq-topics {
  padding: 56px 0;
  border-top: 1px solid var(--border-color);
  background: linear-gradient(180deg, transparent, rgba(17, 26, 58, 0.5));
}
.page-faq .faq-topics-grid {
  display: grid;
  gap: 32px;
}
.page-faq .faq-topics-figure {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}
.page-faq .faq-topics-figure img {
  width: 140px;
  height: 140px;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-color);
  object-fit: cover;
}
.page-faq .faq-topics-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.page-faq .faq-topics-title {
  font-family: var(--font-headline);
  font-size: 26px;
  font-weight: 900;
  margin: 0;
}
.page-faq .faq-topic-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.page-faq .faq-topic-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  text-decoration: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}
.page-faq .faq-topic-card:hover,
.page-faq .faq-topic-card:focus-visible {
  border-color: var(--purple);
  box-shadow: var(--shadow-glow);
  transform: translateX(6px);
}
.page-faq .faq-topic-name {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 17px;
  color: var(--text-main);
}
.page-faq .faq-topic-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
  background: var(--faq-orange-dim);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

/* ===== 问答面板 ===== */
.page-faq .faq-panel {
  padding: 56px 0;
  scroll-margin-top: 80px;
}
.page-faq .faq-panel-head {
  margin-bottom: 32px;
}
.page-faq .faq-panel-head .section-index {
  display: block;
  margin-bottom: 10px;
}
.page-faq .faq-panel-title {
  font-family: var(--font-headline);
  font-size: 28px;
  font-weight: 900;
  margin: 0 0 8px;
}
.page-faq .faq-panel-desc {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 14px;
  color: var(--text-sub);
  margin: 0;
}

.page-faq .faq-list {
  display: grid;
  gap: 12px;
}
.page-faq .faq-item {
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.page-faq .faq-item[open] {
  border-color: var(--purple);
  box-shadow: var(--shadow-glow);
}
.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background 0.2s ease;
}
.page-faq .faq-question::-webkit-details-marker,
.page-faq .faq-question::marker {
  display: none;
}
.page-faq .faq-question:hover {
  background: rgba(123, 45, 223, 0.05);
}
.page-faq .faq-question:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
  border-radius: var(--radius-md);
}
.page-faq .faq-q-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
  border: 1px solid rgba(255, 107, 53, 0.4);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  flex-shrink: 0;
}
.page-faq .faq-q-text {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 15px;
  color: var(--text-main);
  flex: 1;
  line-height: 1.5;
}
.page-faq .faq-q-icon {
  position: relative;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}
.page-faq .faq-q-icon::before,
.page-faq .faq-q-icon::after {
  content: "";
  position: absolute;
  background: var(--purple);
}
.page-faq .faq-q-icon::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}
.page-faq .faq-q-icon::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}
.page-faq .faq-item[open] .faq-q-icon {
  transform: rotate(45deg);
}
.page-faq .faq-answer {
  padding: 0 20px 18px 64px;
}
.page-faq .faq-answer p {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.9;
  margin: 0;
}
.page-faq .faq-answer a {
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: opacity 0.2s ease;
}
.page-faq .faq-answer a:hover {
  opacity: 0.8;
}

/* ===== 联系支持 ===== */
.page-faq .faq-support {
  padding: 56px 0 72px;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.22), rgba(123, 45, 223, 0.12)), var(--bg-deep);
  border-top: 1px solid var(--border-color);
}
.page-faq .faq-support-grid {
  display: grid;
  gap: 28px;
}
.page-faq .faq-support-main .section-index {
  display: block;
  margin-bottom: 10px;
}
.page-faq .faq-support-title {
  font-family: var(--font-headline);
  font-size: 28px;
  font-weight: 900;
  margin: 0 0 12px;
}
.page-faq .faq-support-desc {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.9;
  margin: 0 0 24px;
  max-width: 56ch;
}
.page-faq .faq-support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}
.page-faq .faq-support-note {
  border-left: 2px solid var(--purple);
  padding: 4px 0 4px 16px;
}
.page-faq .faq-support-note p {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.8;
  margin: 0;
}
.page-faq .faq-contact-card {
  background: var(--bg-black);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 28px 24px;
  box-shadow: var(--shadow-card);
}
.page-faq .faq-contact-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-sub);
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}
.page-faq .faq-contact-value {
  display: block;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 17px;
  color: var(--text-main);
  margin-bottom: 22px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.page-faq .faq-contact-value:last-child {
  margin-bottom: 0;
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 72px 0 96px;
  }
  .page-faq .faq-hero-row {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 64px;
    margin-bottom: 56px;
  }
  .page-faq .faq-hero-lead {
    font-size: 16px;
  }
  .page-faq .faq-hero-stat-num {
    font-size: 30px;
  }

  .page-faq .faq-steps {
    flex-direction: row;
    align-items: stretch;
  }
  .page-faq .faq-step {
    flex: 1;
    padding: 28px;
  }
  .page-faq .faq-step-title {
    font-size: 22px;
  }
  .page-faq .faq-step-desc {
    font-size: 15px;
  }
  .page-faq .faq-step-axis {
    width: 56px;
    height: auto;
  }
  .page-faq .faq-step-axis span {
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--purple), rgba(123, 45, 223, 0.12));
  }
  .page-faq .faq-step-axis span::after {
    bottom: auto;
    right: -1px;
    left: auto;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
  }

  .page-faq .faq-topics {
    padding: 72px 0;
  }
  .page-faq .faq-topics-grid {
    grid-template-columns: 220px 1fr;
    align-items: center;
    gap: 56px;
  }
  .page-faq .faq-topics-figure img {
    width: 200px;
    height: 200px;
  }
  .page-faq .faq-topics-title {
    font-size: 30px;
  }
  .page-faq .faq-topic-list {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-faq .faq-topic-card {
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 12px;
    min-height: 118px;
    padding: 24px;
  }
  .page-faq .faq-topic-card:nth-child(2) {
    transform: translateY(-8px);
  }
  .page-faq .faq-topic-card:nth-child(2):hover {
    transform: translateY(-12px);
  }
  .page-faq .faq-topic-card:hover,
  .page-faq .faq-topic-card:focus-visible {
    transform: translateY(-4px);
  }
  .page-faq .faq-topic-name {
    font-size: 18px;
  }

  .page-faq .faq-panel {
    padding: 88px 0;
  }
  .page-faq .faq-panel-title {
    font-size: 34px;
  }
  .page-faq .faq-list {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    align-items: start;
  }
  .page-faq .faq-q-text {
    font-size: 16px;
  }
  .page-faq .faq-answer {
    padding-left: 72px;
  }

  .page-faq .faq-support {
    padding: 88px 0;
  }
  .page-faq .faq-support-grid {
    grid-template-columns: 1fr 360px;
    gap: 56px;
    align-items: start;
  }
  .page-faq .faq-support-title {
    font-size: 34px;
  }
  .page-faq .faq-contact-card {
    padding: 32px 32px 28px;
  }
}