优化服务提供卡片样式，并增加仅校内访问tag

README.md

@@ -101,6 +101,7 @@ git clone https://github.com/itstudio-2002/ITStudioMainSite.git
 - 简介：服务双语字段（中文简介 / 英文简介）
 - 类别：服务分类双语字段（中文名称 / 英文名称）
 - 跳转链接：编辑页中的“服务跳转链接”字段
+- 访问属性：编辑页中的“是否为校内服务”勾选项
 
 后台新增步骤：
 1. 进入 **便民服务 > 新增便民服务**。
@@ -108,6 +109,7 @@ git clone https://github.com/itstudio-2002/ITStudioMainSite.git
    - 中文名称 / 英文名称
    - 中文简介 / 英文简介
    - 服务跳转链接
+   - 是否为校内服务（可选）
 3. 设置特色图作为服务图标。
 4. 在右侧选择或新建“服务分类”。
 5. 发布后，该服务会自动出现在 `/services` 页面中。
@@ -120,6 +122,7 @@ git clone https://github.com/itstudio-2002/ITStudioMainSite.git
 说明：
 - 若未设置“服务跳转链接”，前端会回退到该服务文章自身链接。
 - 若未设置特色图，前端会使用 `resources/it_logo_2024.svg` 作为默认图标。
+- 勾选“是否为校内服务”后，服务卡片右上角会显示“仅校内访问”标签；不勾选则不显示该标签。
 - 新增内容类型后若前台路由未生效，请进入 **设置 > 固定链接** 点击一次“保存更改”刷新重写规则。
 
 ## 🎨 设计规范

assets/css/services-page.css

@@ -110,20 +110,65 @@
 
 .services-directory-card {
   display: block;
-  border: 1px solid var(--border-default);
-  border-radius: 12px;
-  background: color-mix(in srgb, var(--bg-card) 94%, transparent);
-  padding: 12px;
+  position: relative;
+  overflow: hidden;
+  border: 1px solid color-mix(in srgb, var(--border-default) 86%, transparent);
+  border-radius: 6px;
+  background:
+    linear-gradient(
+      132deg,
+      color-mix(in srgb, var(--color-primary) 10%, transparent) 0%,
+      transparent 38%
+    ),
+    linear-gradient(
+      180deg,
+      color-mix(in srgb, var(--bg-card) 92%, #0f1726 8%) 0%,
+      color-mix(in srgb, var(--bg-card) 98%, transparent) 100%
+    );
+  padding: 12px 12px 11px;
   min-height: 0;
   color: inherit;
   text-decoration: none;
-  transition: transform var(--duration-fast) var(--ease-in-out), border-color var(--duration-fast) var(--ease-in-out), box-shadow var(--duration-fast) var(--ease-in-out);
+  box-shadow:
+    0 14px 26px -22px color-mix(in srgb, #000000 68%, transparent),
+    inset 0 1px 0 color-mix(in srgb, #ffffff 8%, transparent);
+  transition: transform var(--duration-fast) var(--ease-in-out), border-color var(--duration-fast) var(--ease-in-out), box-shadow var(--duration-fast) var(--ease-in-out), background var(--duration-fast) var(--ease-in-out);
+}
+
+.services-directory-card::after {
+  content: "";
+  position: absolute;
+  inset: 0;
+  pointer-events: none;
+  background:
+    linear-gradient(90deg, color-mix(in srgb, var(--color-primary) 64%, transparent), transparent)
+      top left / 58px 1px no-repeat,
+    linear-gradient(180deg, color-mix(in srgb, var(--color-primary) 64%, transparent), transparent)
+      top left / 1px 24px no-repeat;
+  opacity: 0.5;
 }
 
 .services-directory-card:hover {
   transform: translateY(-2px);
-  border-color: color-mix(in srgb, var(--color-primary) 52%, var(--border-default) 48%);
-  box-shadow: var(--shadow-sm);
+  border-color: color-mix(in srgb, var(--color-primary) 58%, var(--border-default) 42%);
+  box-shadow:
+    0 20px 32px -24px color-mix(in srgb, #000000 72%, transparent),
+    inset 0 1px 0 color-mix(in srgb, #ffffff 10%, transparent);
+  background:
+    linear-gradient(
+      132deg,
+      color-mix(in srgb, var(--color-primary) 14%, transparent) 0%,
+      transparent 40%
+    ),
+    linear-gradient(
+      180deg,
+      color-mix(in srgb, var(--bg-card) 90%, #0f1726 10%) 0%,
+      color-mix(in srgb, var(--bg-card) 97%, transparent) 100%
+    );
+}
+
+.services-directory-card:hover .services-directory-name {
+  color: color-mix(in srgb, var(--text-primary) 82%, var(--color-primary) 18%);
 }
 
 .services-directory-card-head {
@@ -135,7 +180,7 @@
 .services-directory-icon-wrap {
   width: 54px;
   height: 54px;
-  border-radius: 12px;
+  border-radius: 6px;
   border: none;
   background: transparent;
   overflow: hidden;
@@ -173,6 +218,39 @@
   color: var(--text-secondary);
 }
 
+.services-directory-access {
+  position: absolute;
+  top: 10px;
+  right: 10px;
+  z-index: 2;
+  margin: 0;
+  display: inline-flex;
+  align-items: center;
+  gap: 5px;
+  padding: 2px 8px 2px 7px;
+  border-radius: 4px;
+  font-size: 0.68rem;
+  font-weight: 700;
+  line-height: 1.35;
+  letter-spacing: 0.02em;
+  border: 1px solid color-mix(in srgb, var(--color-primary) 62%, var(--border-default) 38%);
+  background: color-mix(in srgb, var(--color-primary) 20%, var(--bg-card) 80%);
+  color: var(--color-primary);
+}
+
+.services-directory-access::before {
+  content: "";
+  width: 5px;
+  height: 5px;
+  border-radius: 1px;
+  background: currentColor;
+  opacity: 0.9;
+}
+
+.services-directory-card.is-campus-only .services-directory-card-head {
+  padding-right: 98px;
+}
+
 .services-directory-desc {
   margin: 10px 0 0;
   padding-top: 10px;
@@ -277,4 +355,15 @@
   .services-directory-card {
     min-height: 0;
   }
+
+  .services-directory-access {
+    top: 8px;
+    right: 8px;
+    font-size: 0.64rem;
+    padding: 2px 6px;
+  }
+
+  .services-directory-card.is-campus-only .services-directory-card-head {
+    padding-right: 88px;
+  }
 }

functions.php

@@ -655,6 +655,10 @@ function itstudio_get_service_excerpt_en_meta_key() {
     return '_itstudio_service_excerpt_en';
 }
 
+function itstudio_get_service_campus_only_meta_key() {
+    return '_itstudio_service_campus_only';
+}
+
 function itstudio_get_service_category_name_cn_meta_key() {
     return 'itstudio_service_category_name_cn';
 }
@@ -756,6 +760,7 @@ function itstudio_render_service_link_meta_box($post) {
     $title_en = (string) get_post_meta($post->ID, itstudio_get_service_title_en_meta_key(), true);
     $excerpt_cn = (string) get_post_meta($post->ID, itstudio_get_service_excerpt_cn_meta_key(), true);
     $excerpt_en = (string) get_post_meta($post->ID, itstudio_get_service_excerpt_en_meta_key(), true);
+    $is_campus_only = itstudio_is_service_campus_only($post->ID);
     wp_nonce_field('itstudio_save_service_meta', 'itstudio_service_meta_nonce');
     ?>
     <p>
@@ -824,6 +829,18 @@ function itstudio_render_service_link_meta_box($post) {
     <p class="description">
         <?php esc_html_e('支持分别填写中英文名称与简介；未填写时会回退到标题/摘要。', 'itstudio'); ?>
     </p>
+    <p>
+        <label for="itstudio_service_campus_only">
+            <input
+                type="checkbox"
+                id="itstudio_service_campus_only"
+                name="itstudio_service_campus_only"
+                value="1"
+                <?php checked($is_campus_only); ?>
+            >
+            <?php esc_html_e('是否为校内服务（勾选后前台显示“仅校内访问”）', 'itstudio'); ?>
+        </label>
+    </p>
     <?php
 }
 
@@ -864,6 +881,14 @@ function itstudio_save_service_meta($post_id) {
         }
     }
 
+    $campus_only_meta_key = itstudio_get_service_campus_only_meta_key();
+    $is_campus_only = isset($_POST['itstudio_service_campus_only']) && (string) wp_unslash($_POST['itstudio_service_campus_only']) === '1';
+    if ($is_campus_only) {
+        update_post_meta($post_id, $campus_only_meta_key, '1');
+    } else {
+        delete_post_meta($post_id, $campus_only_meta_key);
+    }
+
     $url_meta_key = itstudio_get_service_url_meta_key();
     $raw_url = isset($_POST['itstudio_service_url']) ? trim((string) wp_unslash($_POST['itstudio_service_url'])) : '';
 
@@ -962,6 +987,15 @@ function itstudio_get_service_target_url($service_id) {
     return (string) get_permalink($service_id);
 }
 
+function itstudio_is_service_campus_only($service_id) {
+    $service_id = (int) $service_id;
+    if ($service_id <= 0) {
+        return false;
+    }
+
+    return (string) get_post_meta($service_id, itstudio_get_service_campus_only_meta_key(), true) === '1';
+}
+
 function itstudio_service_admin_columns($columns) {
     $columns['service_category'] = __('分类', 'itstudio');
     $columns['service_url'] = __('跳转链接', 'itstudio');

page-services.php

@@ -47,6 +47,7 @@ if ($services_query->have_posts()) {
             'excerpt_cn' => $i18n_content['excerpt_cn'],
             'excerpt_en' => $i18n_content['excerpt_en'],
             'has_thumb' => has_post_thumbnail($service_id),
+            'is_campus_only' => function_exists('itstudio_is_service_campus_only') ? itstudio_is_service_campus_only($service_id) : false,
             'term_name_cn' => '',
             'term_name_en' => '',
         );
@@ -158,7 +159,11 @@ if (!empty($uncategorized_items)) {
 
                             <div class="services-directory-grid">
                                 <?php foreach ($section['items'] as $item) : ?>
-                                    <a class="services-directory-card" href="<?php echo esc_url($item['url']); ?>" target="_blank" rel="noopener noreferrer">
+                                    <?php $card_classes = 'services-directory-card' . (!empty($item['is_campus_only']) ? ' is-campus-only' : ''); ?>
+                                    <a class="<?php echo esc_attr($card_classes); ?>" href="<?php echo esc_url($item['url']); ?>" target="_blank" rel="noopener noreferrer">
+                                        <?php if (!empty($item['is_campus_only'])) : ?>
+                                            <span class="services-directory-access services-directory-access-campus" data-cn="仅校内访问" data-en="Campus-only">仅校内访问</span>
+                                        <?php endif; ?>
                                         <div class="services-directory-card-head">
                                             <div class="services-directory-icon-wrap">
                                                 <?php if ($item['has_thumb']) : ?>