diff --git a/docs/api-phase1.md b/docs/api-phase1.md
index 555ca54..86ef6f2 100644
--- a/docs/api-phase1.md
+++ b/docs/api-phase1.md
@@ -205,6 +205,10 @@ app.register.max-per-device-per-day
 > 卡片文案只放语言表：`titleLocales`、`synopsisLocales`、`types`、`tagLocales`。
 > `tagColor` 是标签背景色。中文取各表的 `zh`。
 >
+> `tagCode` 是标签语义码（如 `NEW_ARRIVAL`），来自 `content_tag.code`。
+> 客户端按码判断板块（推荐页「上新」横滑），`tagLocales` 只用于展示；
+> 码为空时客户端才退回按文案匹配。后台标签管理可配置该码。
+>
 > 卡片新增 `dramaType`：`ANIME` 表示漫剧，`LIVE` 表示真人剧。
 > 客户端字段仍返回主内容类型；后台多选值保存在 `drama.drama_types`，
 > App 类型筛选按逗号列整词匹配，因此 `ANIME,LIVE` 多标签剧可被任一类型命中。
diff --git a/fruitshorts-app-api/src/main/java/com/fruitshorts/app/service/AppCatalogService.java b/fruitshorts-app-api/src/main/java/com/fruitshorts/app/service/AppCatalogService.java
index 9249237..a61d415 100644
--- a/fruitshorts-app-api/src/main/java/com/fruitshorts/app/service/AppCatalogService.java
+++ b/fruitshorts-app-api/src/main/java/com/fruitshorts/app/service/AppCatalogService.java
@@ -411,6 +411,7 @@ public class AppCatalogService {
         ContentTag tag = tagOf(drama, tags);
         Map<String, String> locales = tagLocales(tag);
         card.setTagLocales(locales);
+        card.setTagCode(tagCode(tag));
         card.setTagColor(tag == null ? "" : tag.getBgColor());
     }
 
@@ -418,9 +419,18 @@ public class AppCatalogService {
         ContentTag tag = tagOf(drama, loadTags(List.of(drama)));
         Map<String, String> locales = tagLocales(tag);
         detail.setTagLocales(locales);
+        detail.setTagCode(tagCode(tag));
         detail.setTagColor(tag == null ? "" : tag.getBgColor());
     }
 
+    /** 语义码直接下发，客户端据此判断板块；未配置时给空串，由客户端按文案兜底。 */
+    private String tagCode(ContentTag tag) {
+        if (tag == null || tag.getCode() == null) {
+            return "";
+        }
+        return tag.getCode().trim();
+    }
+
     private ContentTag tagOf(Drama drama, Map<Long, ContentTag> tags) {
         if (drama.getTagId() == null || drama.getTagId() <= 0L) {
             return null;
diff --git a/fruitshorts-app-api/src/main/java/com/fruitshorts/app/vo/AppDramaCardVO.java b/fruitshorts-app-api/src/main/java/com/fruitshorts/app/vo/AppDramaCardVO.java
index 819e888..aeceea3 100644
--- a/fruitshorts-app-api/src/main/java/com/fruitshorts/app/vo/AppDramaCardVO.java
+++ b/fruitshorts-app-api/src/main/java/com/fruitshorts/app/vo/AppDramaCardVO.java
@@ -20,6 +20,8 @@ public class AppDramaCardVO {
     private List<Map<String, String>> types;
     /** 标签语言表，key 为 zh / en / id。 */
     private Map<String, String> tagLocales;
+    /** 标签语义码，如 NEW_ARRIVAL；客户端按码判断板块，文案仅用于展示。 */
+    private String tagCode;
     /** 标签角标背景色，#RRGGBB。 */
     private String tagColor;
     private Integer totalEpisodes;
diff --git a/fruitshorts-app-api/src/main/java/com/fruitshorts/app/vo/AppDramaDetailVO.java b/fruitshorts-app-api/src/main/java/com/fruitshorts/app/vo/AppDramaDetailVO.java
index f4503e5..81c0da2 100644
--- a/fruitshorts-app-api/src/main/java/com/fruitshorts/app/vo/AppDramaDetailVO.java
+++ b/fruitshorts-app-api/src/main/java/com/fruitshorts/app/vo/AppDramaDetailVO.java
@@ -16,6 +16,8 @@ public class AppDramaDetailVO {
     private String cover;
     private List<Map<String, String>> types;
     private Map<String, String> tagLocales;
+    /** 标签语义码，如 NEW_ARRIVAL；空表示未配置。 */
+    private String tagCode;
     private String tagColor;
     private Integer totalEpisodes;
     private Integer freeEpisodes;
diff --git a/fruitshorts-module-content/src/main/java/com/fruitshorts/content/dal/entity/ContentTag.java b/fruitshorts-module-content/src/main/java/com/fruitshorts/content/dal/entity/ContentTag.java
index c70c3eb..697ea0b 100644
--- a/fruitshorts-module-content/src/main/java/com/fruitshorts/content/dal/entity/ContentTag.java
+++ b/fruitshorts-module-content/src/main/java/com/fruitshorts/content/dal/entity/ContentTag.java
@@ -24,6 +24,8 @@ public class ContentTag {
     private String nameLocales;
     /** 角标背景色，#RRGGBB。 */
     private String bgColor;
+    /** 语义码，如 NEW_ARRIVAL；客户端按码判断板块，不解析文案。空表示未配置。 */
+    private String code;
     private Integer sort;
     private Integer status;
     private LocalDateTime createdAt;
diff --git a/fruitshorts-module-content/src/main/java/com/fruitshorts/content/service/ContentTagService.java b/fruitshorts-module-content/src/main/java/com/fruitshorts/content/service/ContentTagService.java
index a2294e8..4b406b3 100644
--- a/fruitshorts-module-content/src/main/java/com/fruitshorts/content/service/ContentTagService.java
+++ b/fruitshorts-module-content/src/main/java/com/fruitshorts/content/service/ContentTagService.java
@@ -49,9 +49,12 @@ public class ContentTagService {
     public Long create(ContentTagSaveReqVO req) {
         Map<String, String> locales = namesOf(req);
         ensureNameAvailable(locales.get(ContentLocaleTexts.ZH), null);
+        String code = normalizeCode(req.getCode());
+        ensureCodeAvailable(code, null);
         ContentTag entity = new ContentTag();
         writeNames(entity, locales);
         entity.setBgColor(normalizeColor(req.getBgColor()));
+        entity.setCode(code);
         Long count = tagMapper.selectCount(null);
         entity.setSort(req.getSort() == null
                 ? (count == null ? 0 : count.intValue()) + 1
@@ -69,6 +72,11 @@ public class ContentTagService {
         if (req.getBgColor() != null) {
             entity.setBgColor(normalizeColor(req.getBgColor()));
         }
+        if (req.getCode() != null) {
+            String code = normalizeCode(req.getCode());
+            ensureCodeAvailable(code, id);
+            entity.setCode(code);
+        }
         if (req.getSort() != null) {
             entity.setSort(req.getSort());
         }
@@ -115,6 +123,23 @@ public class ContentTagService {
         return color.trim().toUpperCase();
     }
 
+    /** 语义码统一大写；空字符串表示不配置。 */
+    private String normalizeCode(String code) {
+        return code == null ? "" : code.trim().toUpperCase();
+    }
+
+    private void ensureCodeAvailable(String code, Long excludeId) {
+        if (code.isEmpty()) {
+            return;
+        }
+        Long count = tagMapper.selectCount(Wrappers.<ContentTag>lambdaQuery()
+                .eq(ContentTag::getCode, code)
+                .ne(excludeId != null, ContentTag::getId, excludeId));
+        if (count != null && count > 0) {
+            throw new ServiceException(ErrorCode.DATA_EXISTS, "语义码已存在");
+        }
+    }
+
     private ContentTag getExisting(Long id) {
         ContentTag entity = id == null ? null : tagMapper.selectById(id);
         if (entity == null) {
@@ -142,6 +167,7 @@ public class ContentTagService {
         vo.setNameId(ContentLocaleTexts.value(locales, ContentLocaleTexts.ID));
         vo.setLocales(locales);
         vo.setBgColor(tag.getBgColor() == null || tag.getBgColor().isBlank() ? "#E5484D" : tag.getBgColor());
+        vo.setCode(tag.getCode() == null ? "" : tag.getCode());
         vo.setSort(tag.getSort());
         vo.setStatus(tag.getStatus());
         return vo;
diff --git a/fruitshorts-module-content/src/main/java/com/fruitshorts/content/vo/ContentTagRespVO.java b/fruitshorts-module-content/src/main/java/com/fruitshorts/content/vo/ContentTagRespVO.java
index ad8d039..a4164cd 100644
--- a/fruitshorts-module-content/src/main/java/com/fruitshorts/content/vo/ContentTagRespVO.java
+++ b/fruitshorts-module-content/src/main/java/com/fruitshorts/content/vo/ContentTagRespVO.java
@@ -14,6 +14,8 @@ public class ContentTagRespVO {
     private String nameId;
     private java.util.Map<String, String> locales;
     private String bgColor;
+    /** 语义码，如 NEW_ARRIVAL；空表示未配置。 */
+    private String code;
     private Integer sort;
     private Integer status;
 }
diff --git a/fruitshorts-module-content/src/main/java/com/fruitshorts/content/vo/ContentTagSaveReqVO.java b/fruitshorts-module-content/src/main/java/com/fruitshorts/content/vo/ContentTagSaveReqVO.java
index 08c4b1b..8895af1 100644
--- a/fruitshorts-module-content/src/main/java/com/fruitshorts/content/vo/ContentTagSaveReqVO.java
+++ b/fruitshorts-module-content/src/main/java/com/fruitshorts/content/vo/ContentTagSaveReqVO.java
@@ -21,6 +21,10 @@ public class ContentTagSaveReqVO {
     @Pattern(regexp = "^$|^#[0-9A-Fa-f]{6}$", message = "背景色格式应为 #RRGGBB")
     private String bgColor;
 
+    /** 语义码，如 NEW_ARRIVAL；客户端按码判断板块，留空表示按文案兜底。 */
+    @Pattern(regexp = "^$|^[A-Z][A-Z0-9_]{0,31}$", message = "语义码需为大写字母、数字或下划线")
+    private String code;
+
     private Integer sort;
     private Integer status;
 }
diff --git a/sql/patch-2026-10-29-content-tag-code.sql b/sql/patch-2026-10-29-content-tag-code.sql
new file mode 100644
index 0000000..9df0a1d
--- /dev/null
+++ b/sql/patch-2026-10-29-content-tag-code.sql
@@ -0,0 +1,21 @@
+-- Author: fruit.com.cn
+-- 标签语义码：客户端按稳定码判断板块归属（如「上新」横滑），文案可随意改。
+
+ALTER TABLE content_tag ADD COLUMN IF NOT EXISTS code VARCHAR(32) NOT NULL DEFAULT '';
+
+-- 同一个语义码只能给一个标签，空码不参与唯一性约束。
+CREATE UNIQUE INDEX IF NOT EXISTS uk_content_tag_code
+  ON content_tag (code) WHERE code <> '';
+
+-- 已有标签回填语义码（幂等：只补空的）。
+UPDATE content_tag SET code = 'NEW_ARRIVAL'
+WHERE code = '' AND (name = '上新' OR name_en = 'New Arrival');
+
+UPDATE content_tag SET code = 'HOT'
+WHERE code = '' AND (name = '热剧' OR name_en = 'Hot');
+
+UPDATE content_tag SET code = 'NEW_RELEASE'
+WHERE code = '' AND (name = '新剧' OR name_en = 'New Movie');
+
+UPDATE content_tag SET code = 'TRENDING'
+WHERE code = '' AND (name = '热播' OR name_en = 'Rebo');