/*
 * 会小通官网帮助中心样式 (P1P2 扩展版 20260830)
 * PC + H5 响应式；与现有 hxt-ai-chat.js 浮窗视觉风格一致
 * 新增：分组切换标签、多分组适配
 */

.hxt-help-page {
  --hxt-primary: #1677ff;
  --hxt-primary-hover: #4096ff;
  --hxt-bg: #f5f7fa;
  --hxt-card-bg: #fff;
  --hxt-text: #1f2329;
  --hxt-text-sub: #646a73;
  --hxt-border: #e5e6eb;
  --hxt-radius: 12px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--hxt-text);
  background: var(--hxt-bg);
  min-height: 100vh;
}

/* ---------- 顶部导航 ---------- */
.hxt-help-header {
  background: #fff;
  border-bottom: 1px solid var(--hxt-border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  position: sticky;
  top: 0;
  z-index: 100;
}
.hxt-help-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.hxt-help-logo {
  font-size: 20px;
  font-weight: 600;
  color: var(--hxt-text);
  text-decoration: none;
}
.hxt-help-logo span {
  color: var(--hxt-primary);
}
.hxt-help-nav a {
  margin-left: 28px;
  color: var(--hxt-text-sub);
  text-decoration: none;
  font-size: 15px;
}
.hxt-help-nav a:hover,
.hxt-help-nav a.active {
  color: var(--hxt-primary);
}

/* ---------- 分组切换标签 ---------- */
.hxt-help-group-bar {
  background: #fff;
  border-top: 1px solid var(--hxt-border);
}
.hxt-help-group-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  gap: 8px;
  height: 48px;
  align-items: center;
}
.hxt-help-group-tab {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 16px;
  border-radius: 16px;
  font-size: 14px;
  color: var(--hxt-text-sub);
  text-decoration: none;
  background: var(--hxt-bg);
  transition: all 0.2s;
  white-space: nowrap;
}
.hxt-help-group-tab:hover {
  color: var(--hxt-primary);
}
.hxt-help-group-tab.active {
  background: var(--hxt-primary);
  color: #fff;
  font-weight: 500;
}

/* ---------- 搜索区 ---------- */
.hxt-help-hero {
  background: linear-gradient(135deg, #1677ff 0%, #0e5bcc 100%);
  color: #fff;
  padding: 56px 20px;
  text-align: center;
}
.hxt-help-hero h1 {
  margin: 0 0 12px;
  font-size: 32px;
  font-weight: 600;
}
.hxt-help-hero p {
  margin: 0 0 28px;
  opacity: 0.9;
  font-size: 16px;
}
.hxt-help-search {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}
.hxt-help-search input {
  width: 100%;
  height: 52px;
  border: none;
  border-radius: 26px;
  padding: 0 120px 0 24px;
  font-size: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  outline: none;
  box-sizing: border-box;
}
.hxt-help-search button {
  position: absolute;
  right: 6px;
  top: 6px;
  height: 40px;
  border: none;
  border-radius: 20px;
  background: var(--hxt-primary);
  color: #fff;
  padding: 0 24px;
  font-size: 15px;
  cursor: pointer;
}
.hxt-help-search button:hover {
  background: var(--hxt-primary-hover);
}

/* ---------- 热门标签 ---------- */
.hxt-help-hot {
  max-width: 1200px;
  margin: 24px auto 0;
  padding: 0 20px;
}
.hxt-help-hot-label {
  font-size: 14px;
  color: var(--hxt-text-sub);
  margin-right: 10px;
}
.hxt-help-hot-tag {
  display: inline-block;
  margin: 0 8px 8px 0;
  padding: 6px 14px;
  background: #fff;
  border: 1px solid var(--hxt-border);
  border-radius: 16px;
  font-size: 14px;
  color: var(--hxt-text);
  cursor: pointer;
  transition: all 0.2s;
}
.hxt-help-hot-tag:hover {
  border-color: var(--hxt-primary);
  color: var(--hxt-primary);
}

/* ---------- 主体布局 ---------- */
.hxt-help-body {
  max-width: 1200px;
  margin: 24px auto 60px;
  padding: 0 20px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
}
.hxt-help-sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--hxt-card-bg);
  border-radius: var(--hxt-radius);
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  overflow: hidden;
}
.hxt-help-cat {
  display: block;
  width: 100%;
  text-align: left;
  padding: 14px 20px;
  border: none;
  background: transparent;
  font-size: 15px;
  color: var(--hxt-text);
  cursor: pointer;
  border-left: 3px solid transparent;
}
.hxt-help-cat:hover {
  background: #f7f8fa;
}
.hxt-help-cat.active {
  background: #f0f7ff;
  color: var(--hxt-primary);
  border-left-color: var(--hxt-primary);
  font-weight: 500;
}
.hxt-help-cat-count {
  float: right;
  font-size: 12px;
  color: var(--hxt-text-sub);
  background: var(--hxt-bg);
  padding: 2px 8px;
  border-radius: 10px;
}

.hxt-help-main {
  flex: 1;
  min-width: 0;
  background: var(--hxt-card-bg);
  border-radius: var(--hxt-radius);
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  padding: 28px;
  min-height: 360px;
}

/* ---------- 文档列表 ---------- */
.hxt-help-section-title {
  margin: 0 0 20px;
  font-size: 20px;
  font-weight: 600;
}
.hxt-help-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.hxt-help-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--hxt-border);
  cursor: pointer;
}
.hxt-help-item:last-child {
  border-bottom: none;
}
.hxt-help-item:hover .hxt-help-item-title {
  color: var(--hxt-primary);
}
.hxt-help-item-title {
  font-size: 16px;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--hxt-text);
}
.hxt-help-item-summary {
  font-size: 14px;
  color: var(--hxt-text-sub);
  line-height: 1.6;
  margin: 0;
}
.hxt-help-item-hot {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 6px;
  background: #fff2f0;
  color: #f5222d;
  font-size: 12px;
  border-radius: 4px;
}

/* ---------- 文档详情 ---------- */
.hxt-help-detail-back {
  display: inline-flex;
  align-items: center;
  color: var(--hxt-text-sub);
  font-size: 14px;
  margin-bottom: 16px;
  cursor: pointer;
}
.hxt-help-detail-back:hover {
  color: var(--hxt-primary);
}
.hxt-help-detail h2 {
  margin: 0 0 16px;
  font-size: 24px;
  font-weight: 600;
}
.hxt-help-detail-meta {
  font-size: 13px;
  color: var(--hxt-text-sub);
  margin-bottom: 20px;
}
.hxt-help-detail-content {
  font-size: 15px;
  line-height: 1.8;
  color: var(--hxt-text);
  white-space: pre-line;
}

/* ---------- 零结果 ---------- */
.hxt-help-zero {
  text-align: center;
  padding: 48px 20px;
}
.hxt-help-zero-icon {
  font-size: 48px;
  margin-bottom: 12px;
}
.hxt-help-zero h3 {
  margin: 0 0 8px;
  font-size: 18px;
}
.hxt-help-zero p {
  margin: 0 0 24px;
  color: var(--hxt-text-sub);
  font-size: 14px;
}
.hxt-help-zero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.hxt-help-btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 20px;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  border: none;
}
.hxt-help-btn-primary {
  background: var(--hxt-primary);
  color: #fff;
}
.hxt-help-btn-primary:hover {
  background: var(--hxt-primary-hover);
}
.hxt-help-btn-default {
  background: #fff;
  color: var(--hxt-text);
  border: 1px solid var(--hxt-border);
}
.hxt-help-btn-default:hover {
  border-color: var(--hxt-primary);
  color: var(--hxt-primary);
}

/* ---------- 底部 ---------- */
.hxt-help-footer {
  background: #fff;
  border-top: 1px solid var(--hxt-border);
  padding: 28px 20px;
  text-align: center;
  font-size: 13px;
  color: var(--hxt-text-sub);
}
.hxt-help-footer a {
  color: var(--hxt-text-sub);
  text-decoration: none;
  margin: 0 10px;
}

/* ---------- H5 适配 ---------- */
@media (max-width: 768px) {
  .hxt-help-header-inner {
    height: 56px;
    padding: 0 16px;
  }
  .hxt-help-logo {
    font-size: 18px;
  }
  .hxt-help-nav a {
    margin-left: 16px;
    font-size: 14px;
  }
  .hxt-help-group-inner {
    padding: 0 12px;
    height: 44px;
    overflow-x: auto;
  }
  .hxt-help-group-tab {
    padding: 0 12px;
    font-size: 13px;
    height: 28px;
  }
  .hxt-help-hero {
    padding: 36px 16px;
  }
  .hxt-help-hero h1 {
    font-size: 22px;
  }
  .hxt-help-hero p {
    font-size: 14px;
  }
  .hxt-help-search input {
    height: 46px;
    padding-right: 90px;
    font-size: 15px;
  }
  .hxt-help-search button {
    padding: 0 18px;
    height: 34px;
    top: 6px;
    right: 6px;
  }
  .hxt-help-hot {
    padding: 0 16px;
  }
  .hxt-help-body {
    flex-direction: column;
    padding: 0 16px;
    margin-top: 16px;
  }
  .hxt-help-sidebar {
    width: 100%;
    display: flex;
    overflow-x: auto;
    gap: 8px;
    padding: 12px;
    box-sizing: border-box;
  }
  .hxt-help-cat {
    white-space: nowrap;
    border-left: none;
    border-radius: 16px;
    padding: 8px 14px;
    background: var(--hxt-bg);
  }
  .hxt-help-cat.active {
    background: var(--hxt-primary);
    color: #fff;
  }
  .hxt-help-cat-count {
    float: none;
    margin-left: 6px;
    background: rgba(255,255,255,0.3);
  }
  .hxt-help-main {
    padding: 20px 16px;
  }
  .hxt-help-detail h2 {
    font-size: 20px;
  }
}