Nano Banana + Kling + Claude 电影感 Hero

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Prompt: Cinematic Hero Section with Looping Video Background

Create a fullscreen single-page hero section using React + Vite + Tailwind CSS + TypeScript with the following specifications:

Fonts:
Display text (headings, logo): Instrument Serif
Body text (navigation, descriptions): Inter
Import both fonts in /src/styles/fonts.css

Video Background:
URL: 
Position: top: '300px' with inset: 'auto 0 0 0'
Implement custom fade-in/fade-out loop logic using React useEffect and useRef:
Use requestAnimationFrame to continuously monitor currentTime and duration
Fade in over 0.5s at the start (opacity 0 to 1)
Fade out over 0.5s before the end (opacity 1 to 0)
On ended event: set opacity to 0, wait 100ms, reset currentTime = 0, then play() again
This creates a seamless manual loop with smooth fade transitions
Add gradient overlays: absolute inset-0 bg-gradient-to-b from-background via-transparent to-background positioned over the video

Navigation Bar:
Logo: "Aethera®" (with registered trademark symbol as superscript)
Logo styling: text-3xl, tracking-tight, Instrument Serif, color #000000
Menu items: Home (color #000000), Studio, About, Journal, Reach Us (all others #6F6F6F)
Menu items: text-sm with transition-colors
CTA button: "Begin Journey", rounded-full, px-6 py-2.5, text-sm, black background (#000000), white text, hover scale 1.03
Layout: flex justify-between, px-8 py-6, max-w-7xl mx-auto

Hero Section:
Positioning: paddingTop: 'calc(8rem - 75px)', pb-40
Layout: centered (flex flex-col items-center justify-center text-center), px-6
Headline:
Text: "Beyond silence, we build the eternal."
Styling: text-5xl sm:text-7xl md:text-8xl, max-w-7xl, font-normal
Font: Instrument Serif
Line height: 0.95
Letter spacing: -2.46px
Color: #000000 for main text, #6F6F6F for italic emphasized words ("silence," and "the eternal.")
Animation: animate-fade-rise

Description:
Text: "Building platforms for brilliant minds, fearless makers, and thoughtful souls. Through the noise, we craft digital havens for deep work and pure flows."
Styling: text-base sm:text-lg, max-w-2xl, mt-8, leading-relaxed
Color: #6F6F6F
Animation: animate-fade-rise-delay

Hero CTA Button:
Text: "Begin Journey"
Styling: rounded-full, px-14 py-5, text-base, mt-12
Colors: black background (#000000), white text (#FFFFFF)
Hover: scale 1.03
Animation: animate-fade-rise-delay-2

Colors:
Background: white (#FFFFFF)
Headlines/logos/buttons: black (#000000)
Descriptions/menu items: gray (#6F6F6F)
Button text: white (#FFFFFF)

Animations (in /src/styles/theme.css):
fade-rise: opacity 0 to 1, translateY 20px to 0, duration 0.8s, ease-out
fade-rise-delay: same as fade-rise but with 0.2s delay
fade-rise-delay-2: same as fade-rise but with 0.4s delay

Layout Structure:
Container: relative min-h-screen w-full overflow-hidden
Background video layer (z-0)
Gradient overlay on video
Navigation bar (z-10)
Hero section (z-10)
All elements should be responsive and maintain the glassmorphic aesthetic with the specified padding, positioning, and smooth animations.