/* AI体验引导页样式 — 移动优先
   BEM-like 命名约定
   设计令牌继承自 design-system.css 的 CSS 自定义属性
   ============================================================ */

/* ── 页面容器 ── */
.ai-hub {
  max-width: 480px;
  margin: 0 auto;
  padding: 20px 16px 40px;
  min-height: 100vh;
  font-family: var(--font, sans-serif);
}

/* ── 头部 ── */
.ai-hub__header {
  text-align: center;
  margin-bottom: 24px;
}

.ai-hub__back {
  display: inline-block;
  color: var(--color-primary, #f18d24);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 8px;
}

.ai-hub__title {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-text, #1a1a2e);
  margin: 8px 0;
}

.ai-hub__subtitle {
  font-size: 14px;
  color: var(--color-text-secondary, #666);
  margin: 0;
}

/* ── 卡片列表 ── */
.ai-hub__cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ── 单个卡片 ── */
.ai-hub__card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--color-surface, #fff);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  cursor: pointer;
  transition: transform 0.15s;
}

.ai-hub__card:active {
  transform: scale(0.98);
}

.ai-hub__card-icon {
  font-size: 32px;
  flex-shrink: 0;
}

.ai-hub__card-info {
  flex: 1;
  min-width: 0;
}

.ai-hub__card-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text, #333);
  margin-bottom: 2px;
}

.ai-hub__card-desc {
  font-size: 12px;
  color: var(--color-text-secondary, #999);
}

.ai-hub__card-status {
  flex-shrink: 0;
}

.ai-hub__card-lock {
  font-size: 20px;
  opacity: 0.5;
}

.ai-hub__card-btn {
  padding: 8px 16px;
  background: var(--color-primary, #f18d24);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

/* ── 锁定态 ── */
.ai-hub__card--locked {
  filter: grayscale(1);
  opacity: 0.6;
  cursor: default;
}

.ai-hub__card--locked:active {
  transform: none;
}

/* ── 引导横幅 ── */
.ai-hub__guide {
  margin-top: 24px;
  padding: 20px;
  background: linear-gradient(135deg, #fff8f0, #fff3e0);
  border: 1px solid #f5d6a8;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.ai-hub__guide-text {
  flex: 1;
  min-width: 0;
}

.ai-hub__guide-text strong {
  display: block;
  font-size: 14px;
  color: #8b5e3c;
  margin-bottom: 4px;
}

.ai-hub__guide-text p {
  margin: 0;
  font-size: 12px;
  color: #8b5e3c;
}

.ai-hub__guide-btn {
  padding: 10px 20px;
  background: var(--color-primary, #f18d24);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
}

/* ── 弹窗（未解锁引导模态框） ── */
.ai-hub__modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-hub__modal-bg {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}

.ai-hub__modal-card {
  position: relative;
  background: #fff;
  border-radius: 16px;
  padding: 32px 24px;
  width: 85%;
  max-width: 340px;
  text-align: center;
  z-index: 1;
}

.ai-hub__modal-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.ai-hub__modal-title {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a2e;
  margin: 0 0 8px;
}

.ai-hub__modal-desc {
  font-size: 14px;
  color: #666;
  margin: 0 0 20px;
  line-height: 1.5;
}

.ai-hub__modal-btn {
  display: block;
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--color-primary, #f18d24), var(--color-primary-light, #f5a623));
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  margin-bottom: 12px;
  text-decoration: none;
}

.ai-hub__modal-close {
  display: block;
  width: 100%;
  padding: 10px;
  background: transparent;
  border: none;
  color: #999;
  font-size: 14px;
  cursor: pointer;
}

/* ── 暗色模式 ── */
@media (prefers-color-scheme: dark) {
  .ai-hub__card {
    background: #2a2a3a;
  }

  .ai-hub__modal-card {
    background: #2a2a3a;
  }

  .ai-hub__modal-title {
    color: #e0e0e0;
  }

  .ai-hub__modal-desc {
    color: #aaa;
  }

  .ai-hub__guide {
    background: linear-gradient(135deg, #3a3020, #3a3528);
    border-color: #5a4a30;
  }

  .ai-hub__guide-text strong {
    color: #d4a85a;
  }

  .ai-hub__guide-text p {
    color: #b8944a;
  }
}