Modern MPLUS Link UI Redesign

Using REFERENCE_0 as the source UI, the Teams-like internal/external collaboration system was redesigned into a simpler, more modern product model, while retaining the MPLUS Link brand, the dark blue left-side navigation bar, and the overall application functionality. A sophisticated 2-column, 3-row demo was created, showcasing six redesigned screens: 1) featuring a large main visual card and Japanese titles.{argument name="headline text" default="We centralize collaboration with external partners through an invitation-only, dedicated workspace."} 1) A welcome/login landing page with a login tab/button and a realistic desktop monitor main visual image; 2) A project bridging chat screen with right-aligned chat cards, action chips, and a message editor; 3) A team list screen simplified into two concise team cards; 4) A resource/document list screen with upload controls, search/filter areas, and file rows; 5) Titled{argument name="room title" default="MPI Collaborative Development Room"} The shared collaboration room screen includes project overview cards and a compact member/status list; 6) Titled{argument name="admin title" default="User Management"} The user management screen includes user rows and a blank details panel. The new model is more spacious than the reference image: fewer table rows, increased margins, softer separator lines, a light blue-gray background, white rounded-corner cards, subtle shadows, and small blue/green accent buttons. It maintains the feel and virtual data attributes of Japanese enterprise SaaS, but removes dense and cumbersome tables, replacing them with a simplified, aesthetically pleasing UI model suitable for design improvements and comparisons. The brand name is used in the sidebar.{argument name="brand name" default="MPLUS Link"} Ensure the sidebar remains consistent across all screens and avoid adding irrelevant features, watermarks, or decorative clutter.