--- name: Dukang Hospitality Heritage colors: surface: '#faf9f7' surface-dim: '#dadad8' surface-bright: '#faf9f7' surface-container-lowest: '#ffffff' surface-container-low: '#f4f3f1' surface-container: '#efeeec' surface-container-high: '#e9e8e6' surface-container-highest: '#e3e2e0' on-surface: '#1a1c1b' on-surface-variant: '#5a413f' inverse-surface: '#2f3130' inverse-on-surface: '#f1f1ef' outline: '#8d706e' outline-variant: '#e2bebc' surface-tint: '#b3272c' primary: '#820012' on-primary: '#ffffff' primary-container: '#a61d24' on-primary-container: '#ffb9b4' inverse-primary: '#ffb3ae' secondary: '#735c00' on-secondary: '#ffffff' secondary-container: '#fed65b' on-secondary-container: '#745c00' tertiary: '#37413b' on-tertiary: '#ffffff' tertiary-container: '#4e5852' on-tertiary-container: '#c2cdc6' error: '#ba1a1a' on-error: '#ffffff' error-container: '#ffdad6' on-error-container: '#93000a' primary-fixed: '#ffdad7' primary-fixed-dim: '#ffb3ae' on-primary-fixed: '#410004' on-primary-fixed-variant: '#910817' secondary-fixed: '#ffe088' secondary-fixed-dim: '#e9c349' on-secondary-fixed: '#241a00' on-secondary-fixed-variant: '#574500' tertiary-fixed: '#dae5dd' tertiary-fixed-dim: '#bec9c2' on-tertiary-fixed: '#141e19' on-tertiary-fixed-variant: '#3f4943' background: '#faf9f7' on-background: '#1a1c1b' surface-variant: '#e3e2e0' heritage-red: '#A61D24' aged-amber: '#FFBF00' ink-black: '#1A1A1A' subtle-gray: '#999999' success-green: '#2D6A4F' status-blue: '#2A6EBB' typography: headline-xl: fontFamily: Manrope fontSize: 32px fontWeight: '700' lineHeight: 40px letterSpacing: -0.02em headline-lg: fontFamily: Manrope fontSize: 24px fontWeight: '600' lineHeight: 32px headline-md: fontFamily: Manrope fontSize: 18px fontWeight: '600' lineHeight: 26px body-lg: fontFamily: Be Vietnam Pro fontSize: 16px fontWeight: '400' lineHeight: 24px body-md: fontFamily: Be Vietnam Pro fontSize: 14px fontWeight: '400' lineHeight: 20px label-md: fontFamily: Inter fontSize: 12px fontWeight: '500' lineHeight: 16px letterSpacing: 0.05em coupon-amount: fontFamily: Manrope fontSize: 28px fontWeight: '700' lineHeight: 28px headline-lg-mobile: fontFamily: Manrope fontSize: 20px fontWeight: '600' lineHeight: 28px rounded: sm: 0.25rem DEFAULT: 0.5rem md: 0.75rem lg: 1rem xl: 1.5rem full: 9999px spacing: base: 8px margin-page: 20px gutter-card: 12px stack-sm: 4px stack-md: 16px stack-lg: 32px --- ## Brand & Style The design system embodies "Heritage Modernism." It bridges the thousand-year legacy of Dukang liquor with the frictionless convenience of a modern WeChat Mini Program. The brand personality is **distinguished, hospitable, and authoritative**, designed to appeal to a premium demographic that values quality and tradition without wanting the clutter of typical e-commerce. The visual style is **Minimalist with Tactile Accents**. We use heavy whitespace and a strict grid to signify "Premium," while using rich, physical metaphors (like subtle amber gradients and paper-textured backgrounds) to ground the digital experience in the physical world of aged spirits and fine dining. **Key Principles:** - **Clarity Over Promotion:** No loud sales banners. The "Buy Liquor, Get Dining Coupons" value proposition is integrated into the product architecture, not shouted through pop-ups. - **Cultural Resonance:** Use of Chinese Red is intentional and restrained—acting as a seal of quality rather than a generic background color. - **Trustworthy Flow:** Transactional transparency is maintained through clear step-indicators and clean information density. ## Colors The palette is rooted in the "Five Elements" and traditional Chinese aesthetics, refined for digital screens. - **Primary (Heritage Red):** A deep, scholarly red used for primary actions, brand marks, and high-level status. It evokes the "Red Seal" of authenticity. - **Secondary (Warm Gold/Amber):** Represents the liquid gold of aged liquor. Used for the "Coupon Badge" and premium highlights. - **Background (Off-White):** We avoid pure white in favor of a warm, paper-like neutral (`#F9F8F6`) to reduce eye strain and feel more organic. - **Accent (Success Green):** A soft, natural green used for "In Business" status and successful verification states, providing a calming contrast to the red. **Color Mode:** Fixed Light Mode to maintain the "clean and modern" hospitality aesthetic required for WeChat environments. ## Typography The system uses a mix of high-quality sans-serifs to ensure maximum legibility within the WeChat environment while maintaining a refined edge. - **Manrope (Headlines):** Chosen for its modern, balanced geometric shapes. It provides a contemporary contrast to the traditional brand elements. - **Be Vietnam Pro (Body):** An approachable and highly readable font that works exceptionally well at small sizes for product descriptions. - **Inter (Labels):** Used for functional UI elements like buttons and status tags due to its systematic, utilitarian nature. **Hierarchy Rules:** - Price and Coupon amounts should always use `Manrope` Bold to emphasize value. - Product descriptions must implement a `2-line-clamp` to maintain grid consistency. - Navigation titles use `headline-md`. ## Layout & Spacing The design system utilizes a **Fluid Grid** with a specific focus on card-based containers. **Grid Architecture:** - **Margins:** A generous 20px page margin is mandatory to create an "Editorial" feel. - **Rhythm:** An 8px base unit governs all spacing. - **Product Display:** Product images are strictly 1:1 (square) to emphasize the bottle design and label. - **Banners:** Use a 16:6 aspect ratio for the home page header to keep focus on the product list below. **Responsive Behavior:** - On smaller mobile screens, the 2-column product grid reflows into a single-column list to ensure product photography remains impactful. - Bottom sheets should never exceed 80% of the screen height. ## Elevation & Depth We avoid heavy shadows in favor of **Tonal Layers** and **Ambient Depth**. - **Level 0 (Base):** Off-white background (`#F9F8F6`). - **Level 1 (Cards):** Pure White (`#FFFFFF`) with a very soft, 12% opacity shadow: `0px 4px 20px rgba(166, 29, 36, 0.05)`. Note the subtle red tint in the shadow to harmonize with the primary color. - **Level 2 (Active Elements):** For interaction states, we use a slightly more pronounced shadow and a 1px border of `heritage-red` at 10% opacity. - **Layering:** Bottom sheets and Modals use a background blur (Backdrop Filter: 10px) to provide focus on the selection task without losing the context of the shop. ## Shapes The shape language is **"Modern Softness."** - **Cards:** Use a 16px corner radius to feel approachable and high-end. - **Buttons:** Primary buttons use a slightly reduced radius (12px) to look more "contained" and professional compared to more playful social apps. - **Badges:** Success tags and product categories use a "Pill" shape (fully rounded) to differentiate them from functional card elements. - **Photography:** Images should maintain the 16px radius when placed inside cards to ensure a cohesive silhouette. ## Components ### Buttons - **Primary:** Background in Heritage Red, White text, 12px radius. High-contrast and centered. - **Secondary:** Transparent background with a 1px Heritage Red border. ### The Coupon Badge (¥XXX餐券) - **Design:** This is the hero of the product card. It features a Warm Amber (`#FFBF00`) background with a decorative "ticket" notch on the sides. - **Placement:** Positioned at the bottom-left of the product image or top-right of the card container. ### Status Indicators (Step-Tracking) - Horizontal layout with thin 2px lines. - Completed steps are Heritage Red with a Checkmark icon. - Pending steps are Subtle Gray with a simple dot. ### Bottom Sheets - Used for city selection and address picking. - Must include a clear "Grabber" bar at the top and a fixed "Confirm" button at the base. ### Cards - Standard `ProductCard` features a 1:1 image at the top, followed by 12px padding for the title, price, and the Amber Coupon Badge. - `OrderCard` uses a horizontal layout for quick status scanning.