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asset-homepage/components/HowItWorksSection.tsx

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'use client';
import { useState, useEffect, useRef } from 'react';
import Image from 'next/image';
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import { useLanguage } from '@/contexts/LanguageContext';
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// 数字增长动画Hook
function useCountUp(end: number, duration: number = 1500, startRangePercent: number = 0.75) {
const [mounted, setMounted] = useState(false);
const [count, setCount] = useState(end);
const elementRef = useRef<HTMLDivElement>(null);
const startValueRef = useRef<number>(end);
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const animationRef = useRef<number | null>(null);
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useEffect(() => {
setMounted(true);
startValueRef.current = Math.floor(end * (startRangePercent + Math.random() * 0.15));
setCount(startValueRef.current);
}, [end, startRangePercent]);
useEffect(() => {
if (!mounted) return;
const observer = new IntersectionObserver(
(entries) => {
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if (entries[0].isIntersecting) {
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const start = startValueRef.current;
const startTime = Date.now();
const timer = setInterval(() => {
const elapsed = Date.now() - startTime;
const progress = Math.min(elapsed / duration, 1);
const easeOutCubic = 1 - Math.pow(1 - progress, 3);
const currentCount = Math.floor(start + (end - start) * easeOutCubic);
setCount(currentCount);
if (progress === 1) {
setCount(end);
clearInterval(timer);
}
}, 16);
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animationRef.current = timer as unknown as number;
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return () => clearInterval(timer);
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} else {
if (animationRef.current) {
clearInterval(animationRef.current);
}
setCount(startValueRef.current);
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}
},
{ threshold: 0.1 }
);
if (elementRef.current) {
observer.observe(elementRef.current);
}
return () => observer.disconnect();
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}, [end, duration, mounted]);
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return { count, elementRef };
}
export default function HowItWorksSection() {
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const { t } = useLanguage();
const [animate, setAnimate] = useState(false);
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const [activeStep, setActiveStep] = useState(1); // 默认第1步激活
const sectionRef = useRef<HTMLElement>(null);
// 数字动画
const investAmount = useCountUp(100000, 1500, 0.85);
const earnAmount = useCountUp(5150, 1500, 0.85);
useEffect(() => {
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const currentRef = sectionRef.current;
if (!currentRef) return;
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const observer = new IntersectionObserver(
(entries) => {
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if (entries[0].isIntersecting) {
setAnimate(true);
observer.disconnect();
}
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},
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{ threshold: 0.3 }
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);
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observer.observe(currentRef);
return () => observer.disconnect();
}, []);
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const steps = [
{
number: 1,
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title: t('how.step1.title'),
description: t('how.step1.desc'),
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hasLine: true
},
{
number: 2,
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title: t('how.step2.title'),
description: t('how.step2.desc'),
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hasLine: true
},
{
number: 3,
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title: t('how.step3.title'),
description: t('how.step3.desc'),
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hasLine: false
}
];
return (
<section
ref={sectionRef}
className="bg-[#f9fafb] flex flex-col items-center justify-center flex-shrink-0 w-full relative"
style={{
borderStyle: 'solid',
borderColor: '#e5e7eb',
borderWidth: '1px 0px',
padding: '80px 0px'
}}
>
{/* .container20 - Main container */}
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<div className="flex flex-row items-start justify-between flex-shrink-0 relative w-[1440px]">
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{/* Left Side - Steps (.container21) */}
<div className="flex flex-col gap-10 items-start justify-start flex-shrink-0 relative w-[520px]">
{/* Title (.heading-2) */}
<div className="flex flex-col items-start justify-start flex-shrink-0 relative">
<h2
className="text-[#111827] text-left relative font-inter"
style={{
fontSize: '48px',
lineHeight: '120%',
letterSpacing: '-0.01em',
fontWeight: 700
}}
>
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{t('how.title')}
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</h2>
</div>
{/* Steps Container (.frame-34) */}
<div className="flex flex-col gap-6 items-start justify-start flex-shrink-0 relative">
{steps.map((step, index) => {
const isActive = activeStep === step.number;
return (
<div
key={step.number}
onClick={() => setActiveStep(step.number)}
className={`flex flex-row gap-6 items-start justify-start flex-shrink-0 relative cursor-pointer transition-all duration-300 ease-out hover:opacity-80 ${
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animate
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? 'translate-x-0 opacity-100'
: '-translate-x-12 opacity-0'
}`}
style={{
transitionDelay: `${index * 150}ms`
}}
>
{/* Number and Line Container */}
<div className="pt-2 flex flex-col items-center justify-start self-stretch flex-shrink-0 relative">
{/* Number Badge */}
{isActive ? (
// Active step (black background)
<div
className="bg-[#111827] rounded-[999px] flex items-center justify-center flex-shrink-0 w-8 h-[21.63px] relative transition-all duration-300"
style={{
padding: '0.31px 0px 1.32px 0px'
}}
>
<span
className="text-[#fcfcfd] text-center relative flex items-center justify-center font-inter transition-all duration-300"
style={{
fontSize: '14px',
lineHeight: '150%',
fontWeight: 700
}}
>
{step.number}
</span>
</div>
) : (
// Inactive step (border)
<div
className="bg-[#f9fafb] rounded-[9999px] border-2 border-[#d1d5db] flex items-center justify-center flex-shrink-0 w-8 h-[24.5px] relative transition-all duration-300"
>
<span
className="text-[#9ca1af] text-center relative flex items-center justify-center font-inter transition-all duration-300"
style={{
fontSize: '14px',
lineHeight: '150%',
fontWeight: 700
}}
>
{step.number}
</span>
</div>
)}
{/* Connecting Line */}
{step.hasLine && (
<div className="pt-6 flex flex-col items-start justify-center flex-1 w-[2px] relative">
<div className="bg-[#e5e7eb] flex-1 w-[2px] relative" />
</div>
)}
</div>
{/* Text Content */}
<div
className="flex flex-col gap-2 items-start justify-start flex-1 relative"
style={{
paddingBottom: step.hasLine ? '32px' : '0px'
}}
>
<h3
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className="text-left relative flex items-center justify-start font-inter transition-all duration-300"
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style={{
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fontSize: '28px',
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lineHeight: '130%',
letterSpacing: '-0.005em',
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fontWeight: 600,
color: isActive ? '#111827' : '#6b7280'
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}}
>
{step.title}
</h3>
<p
className="text-[#9ca1af] text-left relative self-stretch flex items-center justify-start font-inter"
style={{
fontSize: '16px',
lineHeight: '150%',
fontWeight: 400
}}
>
{step.description}
</p>
</div>
</div>
);
})}
</div>
</div>
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{/* Right Side - Dynamic Cards Container */}
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<div
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className="calculator-card-container flex flex-col items-start justify-start flex-shrink-0 w-[558px] relative"
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style={{
height: '439px'
}}
>
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{/* Step 1: Deposit & Mint WUSD Card */}
<>
{/* Coin Images Container - Rotated Card */}
<div
className={`bg-[#111827] rounded-[16px] flex flex-row gap-4 items-start justify-start h-[162px] absolute z-0 transition-all duration-700 ease-out ${
animate && activeStep === 1 ? 'opacity-100' : 'opacity-0'
}`}
style={{
padding: '25px 25px 1px 25px',
left: '205.43px',
top: '15.96px',
boxShadow: '0px 25px 50px -12px rgba(0, 0, 0, 0.25)',
transformOrigin: '0 0',
transform: animate && activeStep === 1
? 'rotate(6.535deg) scale(1, 1) translateY(0)'
: 'rotate(6.535deg) scale(1, 1) translateY(3rem)',
transitionDelay: activeStep === 1 ? '200ms' : '0ms',
pointerEvents: activeStep === 1 ? 'auto' : 'none'
}}
>
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{/* USDC Logo */}
<Image
src="/usd-coin-usdc-logo-10.svg"
alt="USDC"
width={64}
height={64}
className="flex-shrink-0"
/>
{/* WUSD Logo */}
<div className="flex-shrink-0 w-[66px] h-[66px] relative">
<div className="absolute inset-0 rounded-full bg-gradient-to-br from-green-400 to-emerald-500" />
<Image
src="/image-220.png"
alt="WUSD"
width={66}
height={66}
className="absolute inset-0 rounded-full"
/>
</div>
</div>
{/* Calculator Card */}
<div
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className={`bg-white/85 backdrop-blur-md rounded-[24px] border border-[#e5e7eb] p-8 absolute left-0 top-[99px] w-full shadow-lg z-10 transition-all duration-700 ease-out ${
animate && activeStep === 1 ? 'opacity-100' : 'opacity-0'
}`}
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style={{
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transform: animate && activeStep === 1
? 'rotate(-3deg) translateY(0)'
: 'rotate(-3deg) translateY(3rem)',
transformOrigin: 'center center',
transitionDelay: activeStep === 1 ? '200ms' : '0ms',
pointerEvents: activeStep === 1 ? 'auto' : 'none'
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}}
>
{/* Header */}
<div className="flex flex-row items-center justify-between mb-6">
<div className="flex flex-row gap-3 items-center">
<div className="bg-[#111827] rounded-[12px] w-10 h-10 flex items-center justify-center">
<Image
src="/icon1.svg"
alt="Portfolio"
width={24}
height={24}
/>
</div>
<span
className="text-[#111827] font-inter"
style={{
fontSize: '16px',
lineHeight: '150%',
fontWeight: 500
}}
>
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{t('how.simulator.title')}
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</span>
</div>
<div className="bg-green-50 rounded-lg px-3 py-1">
<span className="text-green-600 font-inter text-sm font-bold">+5.2% APY</span>
</div>
</div>
{/* Investment Amount */}
<div className="mb-4">
<div className="flex flex-col gap-2">
<span
className="text-[#9ca1af] font-inter"
style={{
fontSize: '14px',
lineHeight: '150%',
fontWeight: 400
}}
>
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{t('how.simulator.invest')}
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</span>
<span
ref={investAmount.elementRef}
className="text-[#111827] font-inter"
style={{
fontSize: '32px',
lineHeight: '120%',
letterSpacing: '-0.01em',
fontWeight: 700
}}
>
${investAmount.count.toLocaleString()}
</span>
</div>
{/* Range Slider */}
<div className="mt-4 h-2 bg-[#e5e7eb] rounded-full relative">
<div className="absolute left-1/2 top-1/2 -translate-x-1/2 -translate-y-1/2 w-4 h-4 bg-[#111827] rounded-full" />
</div>
</div>
{/* Earnings */}
<div className="mt-6 pt-6 border-t border-[#e5e7eb]">
<span
className="text-[#9ca1af] font-inter block mb-2"
style={{
fontSize: '14px',
lineHeight: '150%',
fontWeight: 400
}}
>
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{t('how.simulator.earn')}
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</span>
<div className="flex flex-row gap-2 items-center">
<Image
src="/icon2.svg"
alt="Earn"
width={24}
height={24}
/>
<span
ref={earnAmount.elementRef}
className="text-green-600 font-inter"
style={{
fontSize: '32px',
lineHeight: '120%',
letterSpacing: '-0.01em',
fontWeight: 700
}}
>
+${earnAmount.count.toLocaleString()}
</span>
</div>
</div>
</div>
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</>
{/* Step 2: Dual Investment Options Card */}
<div
className={`bg-white rounded-[16px] border border-[#f3f4f6] p-6 flex flex-col gap-6 absolute left-0 top-[99px] w-full transition-all duration-700 ease-out ${
animate && activeStep === 2
? 'opacity-100'
: 'opacity-0'
}`}
style={{
boxShadow: '0px 25px 50px -12px rgba(0, 0, 0, 0.25)',
transform: animate && activeStep === 2
? 'rotate(3deg) translateY(0)'
: 'rotate(3deg) translateY(3rem)',
transformOrigin: '0 0',
transitionDelay: activeStep === 2 ? '200ms' : '0ms',
pointerEvents: activeStep === 2 ? 'auto' : 'none'
}}
>
{/* Header */}
<div
className="border-b border-[#f3f4f6] pb-4 flex flex-row items-center justify-between w-full"
>
<span className="text-[#000000] font-inter text-[18px] font-bold leading-7">
Fund Market
</span>
<span className="text-[#059669] font-inter text-[16px] font-bold leading-6">
Connect Wallet
</span>
</div>
{/* Investment Options Container */}
<div className="flex flex-col gap-4 w-full">
{/* Option 1 - Active */}
<div className="bg-[#f9fafb] rounded-[12px] border border-[#f3f4f6] p-4 flex flex-row gap-4 items-center h-24">
{/* Icon */}
<div className="bg-[#000000] rounded-full w-12 h-12 flex items-center justify-center flex-shrink-0">
<span className="text-white font-inter text-[16px] font-bold">O</span>
</div>
{/* Text Placeholders */}
<div className="flex flex-col gap-2 flex-1">
<div className="bg-[#e5e7eb] rounded h-4 w-24" />
<div className="bg-[#f3f4f6] rounded h-3 w-16" />
</div>
{/* APY Info */}
<div className="flex flex-col gap-2 items-end flex-shrink-0">
<div className="bg-[#e5e7eb] rounded h-4 w-20" />
<span className="text-[#059669] font-inter text-[16px] font-bold leading-6">
APY 30.2%
</span>
</div>
</div>
{/* Option 2 - Inactive */}
<div className="bg-[#f9fafb] rounded-[12px] border border-[#f3f4f6] p-4 flex flex-row gap-4 items-center h-24 opacity-60">
{/* Icon */}
<div className="bg-[#d1d5db] rounded-full w-12 h-12 flex-shrink-0" />
{/* Text Placeholders */}
<div className="flex flex-col gap-2 flex-1">
<div className="bg-[#e5e7eb] rounded h-4 w-32" />
<div className="bg-[#f3f4f6] rounded h-3 w-20" />
</div>
{/* APY Info */}
<div className="flex flex-col gap-2 items-end flex-shrink-0">
<div className="bg-[#e5e7eb] rounded h-4 w-20" />
<span className="text-[#059669] font-inter text-[16px] font-bold leading-6">
APY 15.2%
</span>
</div>
</div>
</div>
</div>
{/* Step 3: Earn & Boost Card */}
<div
className={`bg-white rounded-[16px] border border-[#f3f4f6] p-6 flex flex-col gap-6 absolute left-0 top-[99px] w-[520px] transition-all duration-700 ease-out ${
animate && activeStep === 3 ? 'opacity-100' : 'opacity-0'
}`}
style={{
boxShadow: '0px 25px 50px -12px rgba(0, 0, 0, 0.25)',
transform: animate && activeStep === 3
? 'rotate(3deg) translateY(0)'
: 'rotate(3deg) translateY(3rem)',
transformOrigin: '0 0',
transitionDelay: activeStep === 3 ? '200ms' : '0ms',
overflow: 'hidden',
pointerEvents: activeStep === 3 ? 'auto' : 'none'
}}
>
{/* Header */}
<div className="border-b border-[#f3f4f6] pb-[17px] flex flex-row items-center justify-between" style={{ width: '470px', height: '45px' }}>
<span className="text-[#000000] font-inter text-[18px] font-bold leading-7">
Defi
</span>
<span className="text-[#059669] font-inter text-[16px] font-bold leading-6">
+5.2% APY
</span>
</div>
{/* Cards Grid Container */}
<div
className="relative"
style={{
width: '466px',
height: '195px',
transform: 'rotate(-3deg)',
transformOrigin: '0 0',
overflow: 'hidden'
}}
>
{/* Container 1 */}
<div
className="absolute"
style={{
width: '135.53px',
height: '165.15px',
left: '8.58px',
top: '0.46px',
transform: 'rotate(3deg)',
transformOrigin: '0 0'
}}
>
<div className="bg-[#f9fafb] rounded-[12px] border border-[#f3f4f6] p-4 flex flex-col gap-4 items-center absolute" style={{ width: '134.91px', height: '165.18px', left: '0px', top: '0px' }}>
<div className="bg-[#000000] rounded-full w-12 h-12 flex items-center justify-center flex-shrink-0">
<span className="text-white font-inter text-[16px] font-bold leading-6">O</span>
</div>
<span
className="text-[#000000] font-inter text-[16px] font-bold text-center"
style={{ width: '124px', height: '17px', transform: 'rotate(-3deg)', transformOrigin: '0 0', display: 'flex', alignItems: 'center', justifyContent: 'center' }}
>
+10% APY
</span>
<div
className="bg-[#000000] rounded-lg px-4 py-2"
style={{ transform: 'rotate(-3deg)', transformOrigin: '0 0' }}
>
<span className="text-white font-inter text-[12px] font-bold leading-4">
Boost
</span>
</div>
</div>
</div>
{/* Container 2 */}
<div
className="absolute"
style={{
width: '135.53px',
height: '165.15px',
left: '160.18px',
top: '11.66px',
transform: 'rotate(3deg)',
transformOrigin: '0 0'
}}
>
<div className="bg-[#f9fafb] rounded-[12px] border border-[#f3f4f6] p-4 flex flex-col gap-4 items-center absolute" style={{ width: '134.91px', height: '165.18px', left: '0px', top: '0px' }}>
<div className="bg-[#000000] rounded-full w-12 h-12 flex items-center justify-center flex-shrink-0">
<span className="text-white font-inter text-[16px] font-bold leading-6">O</span>
</div>
<span
className="text-[#000000] font-inter text-[16px] font-bold text-center"
style={{ width: '124px', height: '17px', transform: 'rotate(-3deg)', transformOrigin: '0 0', display: 'flex', alignItems: 'center', justifyContent: 'center' }}
>
+10% APY
</span>
<div
className="bg-[#000000] rounded-lg px-4 py-2"
style={{ transform: 'rotate(-3deg)', transformOrigin: '0 0' }}
>
<span className="text-white font-inter text-[12px] font-bold leading-4">
Boost
</span>
</div>
</div>
</div>
{/* Container 3 */}
<div
className="absolute"
style={{
width: '135.53px',
height: '165.15px',
left: '312.18px',
top: '19.66px',
transform: 'rotate(3deg)',
transformOrigin: '0 0'
}}
>
<div className="bg-[#f9fafb] rounded-[12px] border border-[#f3f4f6] p-4 flex flex-col gap-4 items-center absolute" style={{ width: '134.91px', height: '165.18px', left: '0px', top: '0px' }}>
<div className="bg-[#000000] rounded-full w-12 h-12 flex items-center justify-center flex-shrink-0">
<span className="text-white font-inter text-[16px] font-bold leading-6">O</span>
</div>
<span
className="text-[#000000] font-inter text-[16px] font-bold text-center"
style={{ width: '124px', height: '17px', transform: 'rotate(-3deg)', transformOrigin: '0 0', display: 'flex', alignItems: 'center', justifyContent: 'center' }}
>
+10% APY
</span>
<div
className="bg-[#000000] rounded-lg px-4 py-2"
style={{ transform: 'rotate(-3deg)', transformOrigin: '0 0' }}
>
<span className="text-white font-inter text-[12px] font-bold leading-4">
Boost
</span>
</div>
</div>
</div>
{/* Container 4 - with SWAP button */}
<div
className="absolute"
style={{
width: '135.53px',
height: '165.15px',
left: '160.18px',
top: '11.66px',
transform: 'rotate(3deg)',
transformOrigin: '0 0'
}}
>
<div className="bg-[#f9fafb] rounded-[12px] border border-[#f3f4f6] p-4 flex flex-col gap-4 items-center absolute" style={{ width: '134.91px', height: '165.18px', left: '0px', top: '0px' }}>
<div className="bg-[#000000] rounded-full w-12 h-12 flex items-center justify-center flex-shrink-0">
<span className="text-white font-inter text-[16px] font-bold leading-6">O</span>
</div>
<span
className="text-[#000000] font-inter text-[16px] font-bold text-center"
style={{ width: '124px', height: '17px', transform: 'rotate(-3deg)', transformOrigin: '0 0', display: 'flex', alignItems: 'center', justifyContent: 'center' }}
>
Get USDC
</span>
<div
className="bg-[#000000] rounded-lg px-4 py-2"
style={{ transform: 'rotate(-3deg)', transformOrigin: '0 0' }}
>
<span className="text-white font-inter text-[12px] font-bold leading-4">
SWAP
</span>
</div>
</div>
</div>
{/* Container 5 - with LP button */}
<div
className="absolute"
style={{
width: '135.53px',
height: '165.15px',
left: '312.18px',
top: '19.66px',
transform: 'rotate(3deg)',
transformOrigin: '0 0'
}}
>
<div className="bg-[#f9fafb] rounded-[12px] border border-[#f3f4f6] p-4 flex flex-col gap-4 items-center absolute" style={{ width: '134.91px', height: '165.18px', left: '0px', top: '0px' }}>
<div className="bg-[#000000] rounded-full w-12 h-12 flex items-center justify-center flex-shrink-0">
<span className="text-white font-inter text-[16px] font-bold leading-6">O</span>
</div>
<span
className="text-[#000000] font-inter text-[16px] font-bold text-center"
style={{ width: '124px', height: '17px', transform: 'rotate(-3deg)', transformOrigin: '0 0', display: 'flex', alignItems: 'center', justifyContent: 'center' }}
>
10% APY
</span>
<div
className="bg-[#000000] rounded-lg px-4 py-2"
style={{ transform: 'rotate(-3deg)', transformOrigin: '0 0' }}
>
<span className="text-white font-inter text-[12px] font-bold leading-4">
LP
</span>
</div>
</div>
</div>
</div>
</div>
2026-01-27 17:26:30 +08:00
</div>
</div>
</section>
);
}