野原婉儿

Create a native mobile app in Chinese for couples called "甜蜜时刻" (Sweet Moments). The app should have a cute, modern design with rounded elements, using a pink and blue color scheme. The core features are: 1. **Couple Pairing Mechanism:** * On first use, an unpaired user sees an option to either "Generate a Pairing Code" or "Enter a Pairing Code". * Once a user enters their partner's valid code, their two accounts become permanently linked. * After pairing, all data within the app (joys, messages, anniversaries) is shared exclusively between the two linked users. 2. **Home Screen Dashboard:** * Displays the number of days the couple has been together (calculated from a "start date" they set). * Shows a countdown to the next upcoming important date. * Provides quick access to the other main features. 3. **Shared "Joys" Journal (喜悦日记):** * A shared timeline where both partners can see all entries. * A floating action button (+) allows a user to create a new entry with text and an optional photo. * Entries are displayed as cards showing the text, photo (if any), who posted it, and the date. 4. **Private Chat (悄悄话):** * A standard, real-time chat interface for the couple. * Supports sending and receiving text messages. * Messages should be displayed in chat bubbles, differentiating between the two users. 5. **Anniversary Tracker (纪念日):** * A screen where the couple can add and view important dates (e.g., anniversaries, birthdays). * Each entry should have a title and a date. * The list should be sorted by the next upcoming date, with a countdown for each. All app data, including the couple pairing, journal entries, chat history, and anniversaries, must be stored in a database and linked to the paired users. User authentication and basic profiles are handled by the platform.