fix(pay): render paid reading as fragments

inc/helpers/aksrt-pay.php

@@ -675,6 +675,53 @@ if (!function_exists('aksrt_is_paid_reading')) {
     }
 }
 
+/**
+ * Detect the canonical paid-fragment shortcode in a post's raw content.
+ *
+ * The editor writes this exact shortcode format, so this is the single
+ * source of truth for whether a reading price has any protected fragment to
+ * apply to. It deliberately does not inspect rendered content.
+ */
+if (!function_exists('aksrt_post_has_payshow_shortcode')) {
+    function aksrt_post_has_payshow_shortcode($post = null): bool {
+        $p = get_post($post);
+        if (!($p instanceof WP_Post)) {
+            return false;
+        }
+
+        return preg_match(
+            '/\[hidecontent\b[^\]]*\btype\s*=\s*(?:"payshow"|\'payshow\'|payshow)[^\]]*\]/i',
+            (string) $p->post_content
+        ) === 1;
+    }
+}
+
+/**
+ * A paid fragment is active only for an explicitly priced paid-reading post.
+ *
+ * A zero-price reading configuration is intentionally public: authors can
+ * save content before setting a price without accidentally hiding it.
+ */
+if (!function_exists('aksrt_is_payshow_purchase_enabled')) {
+    function aksrt_is_payshow_purchase_enabled($post = null): bool {
+        if (!aksrt_post_has_payshow_shortcode($post)) {
+            return false;
+        }
+
+        $meta = aksrt_get_pay_meta($post);
+        if (($meta['pay_type'] ?? AKSRT_PAY_TYPE_NO) !== AKSRT_PAY_TYPE_READING) {
+            return false;
+        }
+
+        $pay_modo = ($meta['pay_modo'] ?? '0') === 'points' ? 'points' : '0';
+        $price = $pay_modo === 'points'
+            ? (float) ($meta['points_price'] ?? 0)
+            : (float) ($meta['price'] ?? 0);
+
+        return $price > 0;
+    }
+}
+
 if (!function_exists('aksrt_is_paid_download')) {
     function aksrt_is_paid_download($post = null): bool {
         return aksrt_get_pay_meta($post)['pay_type'] === AKSRT_PAY_TYPE_DOWNLOAD;
@@ -1093,7 +1140,7 @@ if (!function_exists('aksrt_get_pay_attributes_html')) {
 // ============================================================
 
 if (!function_exists('aksrt_get_paywall_html')) {
-    function aksrt_get_paywall_html(WP_Post $post): string {
+    function aksrt_get_paywall_html(WP_Post $post, bool $is_fragment = false): string {
         $meta = aksrt_get_pay_meta($post);
         $pay_type = $meta['pay_type'];
         $priced = function_exists('aksrt_get_user_pay_price') ? aksrt_get_user_pay_price($post) : null;
@@ -1117,6 +1164,9 @@ if (!function_exists('aksrt_get_paywall_html')) {
         ];
 
         $type_info = $type_labels[$pay_type] ?? $type_labels[AKSRT_PAY_TYPE_READING];
+        if ($is_fragment && $pay_type === AKSRT_PAY_TYPE_READING) {
+            $type_info['desc'] = __('付费后即可查看此片段内容', 'aksrt');
+        }
         $login_url = function_exists('aksrt_get_login_url') ? aksrt_get_login_url() : wp_login_url(get_permalink($post));
         $is_logged_in = is_user_logged_in();
         $original_price = (float) ($meta['original_price'] ?? 0);
@@ -1129,13 +1179,12 @@ if (!function_exists('aksrt_get_paywall_html')) {
 
         ob_start();
         ?>
-        <div class="aksrt-paywall" data-post-id="<?php echo esc_attr((string) $post->ID); ?>" data-pay-type="<?php echo esc_attr($pay_type); ?>" data-pay-modo="<?php echo esc_attr($pay_modo); ?>">
-            <div class="aksrt-paywall__overlay">
-                <div class="aksrt-paywall__blur"></div>
-                <div class="aksrt-paywall__card">
-                    <div class="aksrt-paywall__icon">
-                        <i class="fas <?php echo esc_attr($type_info['icon']); ?>" aria-hidden="true"></i>
-                    </div>
+        <div class="aksrt-paywall<?php echo $is_fragment ? ' aksrt-paywall--fragment' : ''; ?>" data-post-id="<?php echo esc_attr((string) $post->ID); ?>" data-pay-type="<?php echo esc_attr($pay_type); ?>" data-pay-modo="<?php echo esc_attr($pay_modo); ?>">
+            <div class="aksrt-paywall__card" role="group" aria-label="<?php esc_attr_e('付费内容购买', 'aksrt'); ?>">
+                <div class="aksrt-paywall__icon">
+                    <i class="fas <?php echo esc_attr($type_info['icon']); ?>" aria-hidden="true"></i>
+                </div>
+                <div class="aksrt-paywall__body">
                     <h3 class="aksrt-paywall__title"><?php echo esc_html($type_info['label']); ?></h3>
                     <p class="aksrt-paywall__desc"><?php echo esc_html($type_info['desc']); ?></p>
                     <div class="aksrt-paywall__price">
@@ -1150,18 +1199,18 @@ if (!function_exists('aksrt_get_paywall_html')) {
                             <span class="aksrt-paywall__price-free"><?php esc_html_e('免费', 'aksrt'); ?></span>
                         <?php endif; ?>
                     </div>
+                </div>
+                <div class="aksrt-paywall__actions">
                     <?php if (!$is_logged_in) : ?>
                         <?php if ($pay_limit <= 0 && $price > 0 && $pay_modo !== 'points' && function_exists('aksrt_allow_guest_content_pay') && aksrt_allow_guest_content_pay($post)) : ?>
                             <button type="button" class="but <?php echo $pay_modo === 'points' ? 'jb-yellow' : 'jb-red'; ?> padding-lg cashier-link aksrt-paywall__btn" data-aksrt-pay-content="<?php echo esc_attr((string) $post->ID); ?>">
                                 <i class="fa fa-shopping-cart" aria-hidden="true"></i> <?php printf(esc_html__('游客购买（%s）', 'aksrt'), $price_text); ?>
                             </button>
-                            <p class="aksrt-paywall__hint" style="margin-top:10px;">
-                                <a href="<?php echo esc_url($login_url); ?>"><?php esc_html_e('已有账号？登录后购买', 'aksrt'); ?></a>
-                            </p>
+                            <a href="<?php echo esc_url($login_url); ?>" class="aksrt-paywall__login-link"><?php esc_html_e('已有账号？登录后购买', 'aksrt'); ?></a>
                         <?php else : ?>
-                        <a href="<?php echo esc_url($login_url); ?>" class="but jb-red padding-lg aksrt-paywall__btn">
-                            <i class="fa fa-sign-in" aria-hidden="true"></i> <?php esc_html_e('登录后购买', 'aksrt'); ?>
-                        </a>
+                            <a href="<?php echo esc_url($login_url); ?>" class="but jb-red padding-lg aksrt-paywall__btn">
+                                <i class="fa fa-sign-in" aria-hidden="true"></i> <?php esc_html_e('登录后购买', 'aksrt'); ?>
+                            </a>
                         <?php endif; ?>
                     <?php elseif ($member_blocked) : ?>
                         <a href="<?php echo esc_url($vip_url); ?>" class="but jb-vip padding-lg aksrt-paywall__btn">
@@ -1173,7 +1222,7 @@ if (!function_exists('aksrt_get_paywall_html')) {
                         </button>
                     <?php endif; ?>
                     <p class="aksrt-paywall__hint">
-                        <i class="fas fa-shield-alt"></i> <?php esc_html_e('购买后永久有效，支持重复查看', 'aksrt'); ?>
+                        <i class="fas fa-shield-alt" aria-hidden="true"></i> <?php esc_html_e('购买后永久有效，支持重复查看', 'aksrt'); ?>
                     </p>
                 </div>
             </div>
@@ -1183,38 +1232,6 @@ if (!function_exists('aksrt_get_paywall_html')) {
     }
 }
 
-// ============================================================
-// 付费墙样式注入
-// ============================================================
-
-add_action('wp_head', function (): void {
-    if (is_admin() || !is_singular()) return;
-    global $post;
-    if (!($post instanceof WP_Post)) return;
-    if (!function_exists('aksrt_can_access_content') || aksrt_can_access_content($post)) return;
-    ?>
-    <style>
-    .aksrt-paywall{position:relative;margin:24px 0}
-    .aksrt-paywall__overlay{position:relative}
-    .aksrt-paywall__blur{filter:blur(12px);pointer-events:none;user-select:none;max-height:200px;overflow:hidden;opacity:.3}
-    .aksrt-paywall__card{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--surface-1,#fff);border:1px solid var(--color-line,#e5e7eb);border-radius:var(--radius-lg,14px);padding:40px;text-align:center;box-shadow:0 12px 40px rgba(0,0,0,.12);min-width:320px;max-width:420px}
-    .aksrt-paywall__icon{font-size:48px;color:var(--color-primary,#f04494);margin-bottom:16px}
-    .aksrt-paywall__title{font-size:20px;font-weight:700;margin:0 0 8px;color:var(--color-ink,#15171A)}
-    .aksrt-paywall__desc{font-size:14px;color:var(--color-ink-3,#525866);margin:0 0 20px}
-    .aksrt-paywall__price{margin-bottom:20px}
-    .aksrt-paywall__price-amount{font-size:28px;font-weight:700;color:var(--color-error,#EF4444)}
-    .aksrt-paywall__price-original{font-size:14px;color:var(--color-ink-4,#8A8F98);text-decoration:line-through;margin-left:8px}
-    .aksrt-paywall__price-free{font-size:20px;font-weight:600;color:var(--color-success,#10B981)}
-    .aksrt-paywall__btn{display:inline-flex;align-items:center;gap:8px}
-    .aksrt-paywall__hint{font-size:12px;color:var(--color-ink-4,#8A8F98);margin:16px 0 0}
-    .aksrt-gallery-locked{filter:blur(8px);pointer-events:none;user-select:none}
-    .aksrt-paywall-preview{margin:0 0 16px;padding:14px 16px;border-left:3px solid var(--color-primary,#f04494);background:var(--surface-2,#f8fafc);border-radius:0 10px 10px 0;color:var(--color-ink-2,#374151);line-height:1.7}
-    .aksrt-paywall-preview p:last-child{margin-bottom:0}
-    .aksrt-paid-gallery__overlay .but,.aksrt-paid-video__placeholder .but{margin-top:10px}
-    </style>
-    <?php
-});
-
 // ============================================================
 // 付费图库轮播（Swiper）
 // ============================================================
@@ -1362,13 +1379,17 @@ if (!function_exists('aksrt_paid_content_filter')) {
         if (!($post instanceof WP_Post)) {
             return $content;
         }
+        $meta = aksrt_get_pay_meta($post);
+        $pay_type = (string) ($meta['pay_type'] ?? AKSRT_PAY_TYPE_NO);
+        // Reading is protected only by the payshow shortcode. Never replace
+        // the entire article body with a post-level purchase wall.
+        if ($pay_type === AKSRT_PAY_TYPE_READING) {
+            return $content;
+        }
         if (aksrt_can_access_content($post)) {
             return $content;
         }
-
-        $meta = aksrt_get_pay_meta($post);
-        $pay_type = (string) ($meta['pay_type'] ?? AKSRT_PAY_TYPE_NO);
-        if (!in_array($pay_type, [AKSRT_PAY_TYPE_READING, AKSRT_PAY_TYPE_GALLERY, AKSRT_PAY_TYPE_VIDEO], true)) {
+        if (!in_array($pay_type, [AKSRT_PAY_TYPE_GALLERY, AKSRT_PAY_TYPE_VIDEO], true)) {
             return $content;
         }