docs(brand): refine the curved visual identity

README.md

@@ -31,7 +31,7 @@ Organization profile, shared visual assets and repository configuration for
 
 ## Visual identity
 
-OpenArkStudio, ark and arknet share a cradle hull and Inter 600 lettering in electric blue and cyan. The organization carries one dot, ark carries three modules, and arknet carries linked nodes. The selected horizontal lockup gives the symbol slightly more emphasis; all lettering uses vector outlines.
+OpenArkStudio, ARK and ArkNet share a continuous curved cradle and Inter 600 lettering in electric blue and cyan. The organization carries one dot, ARK carries three square modules, and ArkNet carries linked square nodes. The wordmarks use `ARK` and `ArkNet`, with slightly more emphasis on the symbol; all lettering uses vector outlines.
 
 All brand SVG masters are archived in this repository's [`assets/`](assets/) directory. Project READMEs reference these files; documentation sites retain matching local copies.
 

README_CN.md

@@ -30,7 +30,7 @@
 
 ## 视觉标识
 
-组织、ark 和 arknet 采用「承托」舟体与 Inter 600 字标，使用电蓝和亮青配色。组织图标带一个圆点，ark 带三个模块，arknet 带连接节点。正式组合采用「图形稍强」比例；文字均已转换为矢量路径。
+OpenArkStudio、ARK 和 ArkNet 采用连续弧形承托舟体与 Inter 600 字标，使用电蓝和亮青配色。组织图标带一个圆点，ARK 带三个方形模块，ArkNet 带方形连接节点。字标使用 `ARK` 和 `ArkNet`，组合保留「图形稍强」比例；文字均已转换为矢量路径。
 
 所有品牌 SVG 统一保存在本仓库的 [`assets/`](assets/) 目录。项目 README 引用这里的资源，文档站保留相同文件的本地副本。
 

assets/README.md

@@ -2,9 +2,9 @@
 
 [简体中文](README_CN.md)
 
-The selected identity combines the cradle symbol with Inter 600 lettering and electric blue / cyan. OpenArkStudio uses one dot, ark uses three modules, and arknet uses linked nodes.
+The selected identity combines a continuous curved cradle with Inter 600 lettering and electric blue / cyan. OpenArkStudio uses one dot, ARK uses three square modules, and ArkNet uses linked square nodes. The wordmarks use `ARK` and `ArkNet`; the organization retains `OpenArk / STUDIO`.
 
-The horizontal lockup uses the selected **symbol emphasis** proportions: hull height 88, lowercase x-height 80, and a visible gap of 40 units. The organization symbol has a 17.6-unit optical lift beside the two-line OpenArk / STUDIO lettering.
+The horizontal lockup retains the selected **symbol emphasis**: hull height 88 and a visible gap of 40 units. ARK and ArkNet use a capital height of 96. The organization uses a capital height of 72 and a 17.6-unit optical lift for the symbol beside the two-line OpenArk / STUDIO lettering. The inner and outer curves meet the straight arms tangentially.
 
 ![Selected identity](identity-overview.png)
 

assets/README_CN.md

@@ -2,9 +2,9 @@
 
 [English](README.md)
 
-正式标识采用承托舟体、Inter 600 字标与电蓝、亮青配色。组织图标带一个圆点，ark 带三个模块，arknet 带连接节点。
+正式标识采用连续弧形承托舟体、Inter 600 字标与电蓝、亮青配色。组织图标带一个圆点，ARK 带三个方形模块，ArkNet 带方形连接节点。字标使用 `ARK` 和 `ArkNet`，组织保留 `OpenArk / STUDIO`。
 
-已选定「图形稍强」比例：舟体高度 88、小写 x-height 80、可见图文间隔 40 单位。组织图标上提 17.6 单位，与 OpenArk / STUDIO 双行字标做光学对齐。
+保留「图形稍强」比例：舟体高度 88、可见图文间隔 40 单位。ARK 与 ArkNet 的大写字高为 96；组织的大写字高为 72，图标上提 17.6 单位，与 OpenArk / STUDIO 双行字标做光学对齐。内外弧线均与直臂相切衔接。
 
 ![选定标识](identity-overview.png)