/* ============================================
   律智 AI — 全局导航栏样式（SPA + 官网共享）
   作用域：.navbar / .user-nav-dd / .nav-bell-* / .nbd-*
   ============================================ */

:root {
  --nav-h: 72px;
  --nav-text: #1a1d29;
  --nav-text-2: #5a6478;
  --nav-text-3: #94a3b8;
  --nav-blue: #2563eb;
  --nav-blue-2: #3b82f6;
  --nav-purple: #8b5cf6;
  --nav-bg-hover: rgba(0,0,0,0.04);
  --nav-line: #f1f5f9;
  --nav-shadow: 0 8px 32px rgba(0,0,0,0.12);
  --nav-radius: 12px;
  --nav-radius-sm: 8px;
  --nav-ease: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-grad-avatar: linear-gradient(135deg, var(--nav-blue-2), var(--nav-purple));
  --nav-grad-link: linear-gradient(90deg, var(--nav-blue), #7c3aed);
}

/* ---------- Navbar 容器 ---------- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 24px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid rgba(0,0,0,0.08);
  font-family: 'Noto Sans SC', 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  transition: all 0.3s ease;
}
.navbar.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px) saturate(1.2);
  box-shadow: 0 4px 30px rgba(0,0,0,0.08);
}
.navbar .nav-container {
  width: 100%; padding: 0 40px; height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
}
.navbar .nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 18px;
  color: var(--nav-text); text-decoration: none;
}
.navbar .brand-logo { flex-shrink: 0; }
.navbar .brand-text { letter-spacing: 0.5px; }
.navbar .brand-badge {
  font-size: 11px; font-weight: 700;
  background: linear-gradient(135deg, var(--nav-blue), #7c3aed);
  color: #fff; padding: 2px 6px; border-radius: 4px;
  vertical-align: middle; margin-left: 2px;
}
.navbar .nav-links { display: flex; gap: 32px; }
.navbar .nav-links a {
  font-size: 14px; color: var(--nav-text-2);
  position: relative; padding: 4px 0; text-decoration: none;
  transition: var(--nav-ease);
}
.navbar .nav-links a:hover { color: var(--nav-text); }
.navbar .nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; border-radius: 1px;
  background: var(--nav-grad-link);
  transition: width 0.3s ease;
}
.navbar .nav-links a:hover::after,
.navbar .nav-links a.active::after { width: 100%; }
.navbar .nav-links a.active { color: #1e293b; font-weight: 500; }
.navbar .nav-actions { display: flex; gap: 8px; align-items: center; }

/* ---------- 按钮 ---------- */
.navbar .btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 24px; border-radius: var(--nav-radius-sm);
  font-size: 14px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; white-space: nowrap;
  position: relative; overflow: hidden; text-decoration: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.navbar .btn-primary {
  background: var(--nav-blue); color: #fff; border-color: var(--nav-blue);
  box-shadow: 0 0 20px rgba(59,130,246,0.25), inset 0 1px 0 rgba(255,255,255,0.1);
}
.navbar .btn-primary:hover {
  background: linear-gradient(135deg, var(--nav-blue-2), var(--nav-blue));
  box-shadow: 0 0 30px rgba(59,130,246,0.4), 0 4px 12px rgba(59,130,246,0.3);
  transform: translateY(-2px);
}
.navbar .btn-primary:active { transform: translateY(0); }
.navbar .btn-sm { padding: 8px 24px; font-size: 14px; }

/* ---------- 浮层基类（用户下拉 + 铃铛下拉共用） ---------- */
.user-nav-dd, .nav-bell-wrapper { position: relative; }
.user-nav-dd { cursor: pointer; }
.nav-bell-wrapper { margin-right: 4px; }
.dropdown-menu-dd, .nav-bell-dropdown {
  position: absolute; top: 100%; right: 0; margin-top: 8px;
  background: #fff; border-radius: var(--nav-radius);
  box-shadow: var(--nav-shadow);
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: all 0.2s ease; z-index: 2000; overflow: hidden;
}
.dropdown-menu-dd { width: 240px; }
.nav-bell-dropdown { width: 360px; max-height: 420px; }
.user-nav-dd:hover .dropdown-menu-dd,
.nav-bell-dropdown.open {
  opacity: 1; visibility: visible; transform: translateY(0);
}

/* ---------- 头像 ---------- */
.user-nav-trigger-dd {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px; border-radius: var(--nav-radius-sm);
  transition: background 0.2s;
}
.user-nav-trigger-dd:hover { background: var(--nav-bg-hover); }
.avatar-circle-dd, .dd-avatar-lg {
  border-radius: 50%; color: #fff;
  background: var(--nav-grad-avatar);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.avatar-circle-dd { width: 28px; height: 28px; font-weight: 600; font-size: 13px; }
.dd-avatar-lg { width: 48px; height: 48px; font-weight: 700; font-size: 20px; margin: 0 auto 8px; }
.avatar-name-dd { font-size: 13px; color: var(--nav-text-2); }
.chevron-dd { color: var(--nav-text-2); transition: transform 0.2s; flex-shrink: 0; }
.user-nav-dd:hover .chevron-dd { transform: rotate(180deg); }

/* ---------- 下拉菜单内容 ---------- */
.dd-user-info { padding: 16px; text-align: center; }
.dd-name { font-size: 15px; font-weight: 600; color: var(--nav-text); margin-bottom: 2px; }
.dd-id { font-size: 12px; color: var(--nav-text-3); }
.dd-copy-btn {
  border: none; background: var(--nav-line); color: #64748b;
  font-size: 11px; padding: 2px 8px; border-radius: 4px;
  cursor: pointer; margin-left: 6px;
}
.dd-copy-btn:hover { background: #e2e8f0; }
.dd-divider { height: 1px; background: var(--nav-line); margin: 0 12px; }
.dd-balance {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 16px; font-size: 13px; color: var(--nav-text-2);
}
.dd-bal-val { font-weight: 700; color: var(--nav-blue); }
.dd-item {
  display: flex; align-items: center; gap: 10px; padding: 10px 16px;
  font-size: 13px; color: var(--nav-text); text-decoration: none;
  transition: background 0.15s;
}
.dd-item:hover { background: #f8fafc; color: var(--nav-blue); }
.dd-item svg { flex-shrink: 0; color: var(--nav-text-3); }
.dd-logout {
  border: none; background: none; width: 100%;
  cursor: pointer; text-align: left; font-family: inherit;
}
.dd-logout:hover { background: #fef2f2; color: #ef4444; }
.dd-logout:hover svg { color: #ef4444; }

/* ---------- 通知铃铛 ---------- */
.nav-bell-btn {
  position: relative; width: 36px; height: 36px;
  border: none; background: none; border-radius: var(--nav-radius-sm);
  color: #64748b; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.nav-bell-btn:hover { background: var(--nav-bg-hover); color: var(--nav-blue-2); }
.nav-bell-badge {
  position: absolute; top: 2px; right: 2px;
  min-width: 16px; height: 16px; padding: 0 4px;
  background: #ef4444; color: #fff;
  font-size: 10px; font-weight: 700; border-radius: var(--nav-radius-sm);
  display: flex; align-items: center; justify-content: center;
  line-height: 1; pointer-events: none;
}
.nbd-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px; border-bottom: 1px solid var(--nav-line);
  font-size: 15px; font-weight: 600; color: var(--nav-text);
}
.nbd-readall {
  border: none; background: none; cursor: pointer;
  font-size: 12px; color: var(--nav-blue-2);
}
.nbd-readall:hover { text-decoration: underline; }
.nbd-list { max-height: 340px; overflow-y: auto; }
.nbd-loading, .nbd-empty {
  text-align: center; padding: 40px 20px;
  color: #9ca3b0; font-size: 13px;
}
.nbd-item {
  display: flex; gap: 10px; padding: 12px 16px; cursor: pointer;
  border-bottom: 1px solid #f8fafc; transition: background 0.15s;
}
.nbd-item:hover { background: #f8fafc; }
.nbd-item.nbd-unread { background: #f0f4ff; }
.nbd-icon { font-size: 20px; flex-shrink: 0; margin-top: 2px; }
.nbd-body { flex: 1; min-width: 0; }
.nbd-title { font-size: 13px; font-weight: 600; color: var(--nav-text); margin-bottom: 2px; }
.nbd-msg {
  font-size: 12px; color: #64748b;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.nbd-time { font-size: 11px; color: #9ca3b0; margin-top: 4px; }
.nbd-actions { display: flex; gap: 6px; flex-shrink: 0; align-items: flex-start; padding-top: 2px; }
.nbd-accept, .nbd-reject {
  padding: 4px 10px; font-size: 11px; font-weight: 500; border: none;
  border-radius: 5px; cursor: pointer; transition: all 0.2s; white-space: nowrap;
}
.nbd-accept { background: #10b981; color: #fff; }
.nbd-accept:hover { background: #059669; transform: scale(1.05); }
.nbd-reject { background: var(--nav-line); color: #64748b; }
.nbd-reject:hover { background: #fee2e2; color: #ef4444; }

/* ---------- 移动端 ---------- */
.navbar .mobile-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.navbar .mobile-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--nav-text); border-radius: 2px;
  transition: var(--nav-ease);
}
@media (max-width: 768px) {
  .navbar .nav-links { display: none; }
  .navbar .mobile-toggle { display: flex; }
}
/* ============================================
   全局轻提示 Toast（无依赖）
   ============================================ */
.ly-toast {
  position: fixed; top: 24px; left: 50%;
  transform: translate(-50%, -16px);
  background: rgba(26,29,41,0.92); color: #fff;
  font-size: 13px; font-weight: 500;
  padding: 10px 18px; border-radius: var(--nav-radius-sm);
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  backdrop-filter: blur(10px);
  opacity: 0; transition: all 0.25s ease;
  z-index: 99999; pointer-events: none;
  max-width: 80vw; white-space: nowrap;
}
.ly-toast.ly-toast-show { opacity: 1; transform: translate(-50%, 0); }
.ly-toast-success { background: rgba(16,185,129,0.95); }
.ly-toast-error { background: rgba(239,68,68,0.95); }
.ly-toast-info { background: rgba(37,99,235,0.95); }

/* ============================================
   全局确认对话框
   ============================================ */
.ly-confirm-mask {
  position: fixed; inset: 0; z-index: 99998;
  background: rgba(15,23,42,0.45);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.2s ease;
  backdrop-filter: blur(2px);
}
.ly-confirm-mask.ly-confirm-show { opacity: 1; }
.ly-confirm-box {
  background: #fff; border-radius: var(--nav-radius);
  width: min(92vw, 360px); padding: 22px 24px 18px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  transform: scale(0.96); transition: transform 0.2s ease;
  font-family: 'Noto Sans SC', -apple-system, sans-serif;
}
.ly-confirm-show .ly-confirm-box { transform: scale(1); }
.ly-confirm-title {
  font-size: 16px; font-weight: 600;
  color: var(--nav-text); margin-bottom: 8px;
}
.ly-confirm-msg {
  font-size: 14px; color: var(--nav-text-2);
  line-height: 1.6; margin-bottom: 20px;
}
.ly-confirm-actions {
  display: flex; gap: 10px; justify-content: flex-end;
}
.ly-confirm-btn {
  padding: 8px 18px; border-radius: var(--nav-radius-sm);
  border: none; cursor: pointer; font-size: 13px; font-weight: 500;
  font-family: inherit; transition: all 0.18s ease;
}
.ly-confirm-cancel {
  background: var(--nav-line); color: var(--nav-text-2);
}
.ly-confirm-cancel:hover { background: #e2e8f0; }
.ly-confirm-ok {
  background: var(--nav-blue); color: #fff;
}
.ly-confirm-ok:hover { background: var(--nav-blue-2); transform: translateY(-1px); }