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② 後台搜尋「Portus Cart for WooCommerce」→ 直接安裝（推薦）
原文外掛簡介
Portus Cart for WooCommerce adds a fast, responsive side cart to WooCommerce stores. It helps customers review cart items, update quantities, apply coupons, remove products and continue to checkout without leaving the current page.
The plugin focuses on the essential cart workflow:
Responsive side cart panel.
Optional floating cart button with item counter.
Automatic opening after WooCommerce AJAX add to cart.
Quantity updates without reloading the page.
Apply and remove WooCommerce coupons without reloading the page.
Remove cart items without reloading the page.
Checkout and cart page links.
Low stock alerts.
Admin settings for colors, button labels, positioning and compatibility.
Basic plugin health screen for environment checks.
Scoped frontend styles to reduce theme conflicts.
Portus Cart uses WordPress and WooCommerce APIs, WooCommerce cart fragments and prefixed CSS classes for the plugin interface. All features included in this WordPress.org package are available without a license key.
Requirements
WordPress 6.0 or newer.
PHP 7.4 or newer.
WooCommerce active.
A theme that prints the standard WordPress footer hook.
Configuration
After activation, open the Portus Cart settings page to adjust:
Cart title.
Floating cart button visibility and spacing.
Primary and accent colors.
Checkout, cart and empty cart button labels.
Optional custom URL for the empty cart button.
Coupon field follows the standard WooCommerce coupon setting.
Automatic opening after AJAX add to cart.
Panel width, z-index and overlay opacity.
Low stock notices and basic checkout behavior.
The default settings are designed to work with most WooCommerce themes without additional code.
Privacy
Portus Cart for WooCommerce does not send customer data to an external service. The plugin works with the local WordPress and WooCommerce cart session.
Cart content, quantities and totals are handled by WooCommerce. Store owners should review their WooCommerce privacy policy and payment/shipping integrations separately.
