/* ==========================================================================
   响应式媒体查询 (Responsive Media Queries)
   ========================================================================== */
    /* ==========================================================================
       响应式适配 (Responsive Media Queries)
       ========================================================================== */
    @media (max-width: 900px) {
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
    }

    @media (max-width: 1140px) {
      .search-trigger-btn .kbd-shortcut {
        display: none;
      }
      .search-trigger-btn {
        padding: 6px 10px;
      }
      .nav-link {
        padding: 6px 10px;
        font-size: 0.88rem;
      }
    }

    @media (max-width: 980px) {
      .nav-links, .search-trigger-btn {
        display: none;
      }
      .mobile-menu-toggle {
        display: flex;
      }
      .mod-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mod-grid {
        grid-template-columns: 1fr;
      }
      .guide-section {
        padding: 24px;
      }
    }
  
    /* 多语言选择器与登录状态 */
    .lang-btn {
      padding: 6px 12px;
      background: var(--bg-surface-elevated);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-full);
      font-size: 0.825rem;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 6px;
      transition: all var(--transition-fast);
    }
    .lang-btn:hover {
      border-color: var(--gta-gold);
      color: var(--gta-gold);
    }

    /* 多语言下拉选择菜单 */
    .lang-dropdown-wrapper {
      position: relative;
      display: inline-block;
    }
    .lang-flag-box {
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .lang-flag-svg {
      display: block;
      border-radius: 50%;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
      flex-shrink: 0;
    }
    .lang-dropdown-btn {
      padding: 7px 12px;
      background: var(--bg-surface-elevated);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-full);
      font-size: 0.825rem;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 6px;
      cursor: pointer;
      transition: all var(--transition-fast);
      user-select: none;
    }
    .lang-dropdown-btn:hover {
      border-color: var(--gta-gold);
      color: var(--gta-gold);
      background: rgba(245, 158, 11, 0.08);
    }
    .dropdown-chevron {
      transition: transform var(--transition-fast);
      opacity: 0.7;
    }
    .lang-dropdown-wrapper.open .dropdown-chevron {
      transform: rotate(180deg);
    }
    .lang-dropdown-menu {
      position: absolute;
      top: calc(100% + 8px);
      right: 0;
      min-width: 145px;
      background: var(--bg-surface-elevated);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
      padding: 6px;
      z-index: 1000;
      opacity: 0;
      pointer-events: none;
      transform: translateY(-8px);
      transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
      backdrop-filter: blur(16px);
    }
    .lang-dropdown-wrapper.open .lang-dropdown-menu {
      opacity: 1;
      pointer-events: auto;
      transform: translateY(0);
    }
    .lang-option-item {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      font-size: 0.84rem;
      color: var(--text-secondary);
      cursor: pointer;
      transition: all var(--transition-fast);
    }
    .lang-option-item:hover {
      background: rgba(255, 255, 255, 0.06);
      color: var(--text-main);
    }
    .lang-option-item.active {
      background: rgba(245, 158, 11, 0.15);
      color: var(--gta-gold);
      font-weight: 700;
    }
    .lang-opt-check {
      margin-left: auto;
      font-size: 0.8rem;
      opacity: 0;
    }
    .lang-option-item.active .lang-opt-check {
      opacity: 1;
    }

    /* 用户登录状态组件 */
    .user-auth-entry {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .login-trigger-btn {
      padding: 7px 16px;
      background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(245, 158, 11, 0.25));
      border: 1px solid rgba(245, 158, 11, 0.4);
      color: var(--gta-gold);
      border-radius: var(--radius-full);
      font-size: 0.85rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 6px;
      transition: all var(--transition-fast);
    }
    .login-trigger-btn:hover {
      background: var(--gta-gold);
      color: #000;
      box-shadow: 0 0 16px var(--gta-gold-glow);
    }

    .user-logged-box {
      display: flex;
      align-items: center;
      gap: 10px;
      background: var(--bg-surface-elevated);
      padding: 4px 10px 4px 5px;
      border-radius: var(--radius-full);
      border: 1px solid var(--border-subtle);
    }
    .user-avatar-circle {
      width: 32px;
      height: 32px;
      border-radius: var(--radius-full);
      background: linear-gradient(135deg, var(--gta-gold), #b45309);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      color: #000;
      font-weight: 800;
    }
    .user-name-text {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .user-badge-tag {
      font-size: 0.7rem;
      padding: 1px 6px;
      border-radius: 4px;
      background: rgba(245, 158, 11, 0.2);
      color: var(--gta-gold);
      border: 1px solid rgba(245, 158, 11, 0.35);
    }
    .logout-link-btn {
      font-size: 0.75rem;
      color: var(--text-muted);
      cursor: pointer;
      padding: 2px 6px;
      border-radius: 4px;
      transition: color var(--transition-fast);
    }
    .logout-link-btn:hover {
      color: var(--status-red);
    }

    /* 玩家发布模组按钮 */
    .btn-publish-mod {
      padding: 8px 18px;
      background: linear-gradient(135deg, #10b981, #059669);
      color: #fff;
      font-size: 0.875rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
      transition: all var(--transition-fast);
      white-space: nowrap;
      cursor: pointer;
    }
    .btn-publish-mod:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
    }