feat(web): Typewriter 优化（修复 undefined、矩阵绿样式、降低速度）并更新启动指令为 README 前端开发流程

web/src/components/LandingPage.tsx

@@ -381,24 +381,6 @@ export function LandingPage() {
                 />
               </motion.div>
 
-              <FloatingCard
-                delay={0.7}
-                position={{ bottom: '-6', left: '-6' }}
-                color='yellow'
-              >
-                <div
-                  className='text-2xl font-bold'
-                  style={{ color: 'var(--brand-yellow)' }}
-                >
-                  24/7
-                </div>
-                <div
-                  className='text-xs'
-                  style={{ color: 'var(--text-secondary)' }}
-                >
-                  自动交易
-                </div>
-              </FloatingCard>
             </motion.div>
           </div>
         </div>
@@ -519,15 +501,16 @@ export function LandingPage() {
                 <Typewriter
                   lines={[
                     '$ git clone https://github.com/tinkle-community/nofx',
-                    '$ docker compose up -d',
-                    '🚀 NOFX 已启动',
-                    '✓ AI 代理运行中',
-                    '✓ 交易所已连接',
-                    '✓ 策略已激活',
+                    '$ cd nofx/web',
+                    '$ npm install',
+                    '$ npm run dev',
+                    '🚀 前端已启动 http://localhost:3000',
+                    '✓ 就绪',
                   ]}
-                  typingSpeed={24}
-                  lineDelay={350}
+                  typingSpeed={55}
+                  lineDelay={700}
                   className='text-sm font-mono'
+                  style={{ color: '#00FF41', textShadow: '0 0 6px rgba(0,255,65,0.6)' }}
                 />
               </motion.div>
             </motion.div>
@@ -940,33 +923,6 @@ export function LandingPage() {
   )
 }
 
-// Helper Components
-function FloatingCard({ children, delay, position, color }: any) {
-  return (
-    <motion.div
-      className={`absolute rounded-xl px-4 py-3 backdrop-blur-xl z-20`}
-      style={{
-        background: 'rgba(30, 35, 41, 0.9)',
-        border: `1px solid ${
-          color === 'green'
-            ? 'rgba(14, 203, 129, 0.3)'
-            : 'rgba(240, 185, 11, 0.3)'
-        }`,
-        ...Object.keys(position).reduce((acc: any, key) => {
-          acc[key] = position[key] + 'rem'
-          return acc
-        }, {}),
-      }}
-      initial={{ opacity: 0, scale: 0 }}
-      animate={{ opacity: 1, scale: 1 }}
-      transition={{ delay, type: 'spring', stiffness: 260, damping: 20 }}
-      whileHover={{ scale: 1.1, rotate: 5 }}
-    >
-      {children}
-    </motion.div>
-  )
-}
-
 function AnimatedSection({
   children,
   id,

web/src/components/Typewriter.tsx

@@ -5,15 +5,17 @@ interface TypewriterProps {
   typingSpeed?: number // 毫秒/字符
   lineDelay?: number // 每行结束的额外等待
   className?: string
+  style?: React.CSSProperties
 }
 
 export default function Typewriter({
   lines,
-  typingSpeed = 25,
-  lineDelay = 400,
+  typingSpeed = 50,
+  lineDelay = 600,
   className,
+  style,
 }: TypewriterProps) {
-  const [text, setText] = useState('')
+  const [typedLines, setTypedLines] = useState<string[]>([''])
   const [showCursor, setShowCursor] = useState(true)
   const lineIndexRef = useRef(0)
   const charIndexRef = useRef(0)
@@ -24,15 +26,19 @@ export default function Typewriter({
     function typeNext() {
       const currentLine = lines[lineIndexRef.current] ?? ''
       if (charIndexRef.current < currentLine.length) {
-        setText((t) => t + currentLine[charIndexRef.current])
+        setTypedLines((prev) => {
+          const next = [...prev]
+          next[next.length - 1] = (next[next.length - 1] || '') + currentLine[charIndexRef.current]
+          return next
+        })
         charIndexRef.current += 1
         timerRef.current = window.setTimeout(typeNext, typingSpeed)
       } else {
         // 行结束
         if (lineIndexRef.current < lines.length - 1) {
-          setText((t) => t + '\n')
           lineIndexRef.current += 1
           charIndexRef.current = 0
+          setTypedLines((prev) => [...prev, ''])
           timerRef.current = window.setTimeout(typeNext, lineDelay)
         } else {
           // 最后一行输入完毕
@@ -55,8 +61,8 @@ export default function Typewriter({
   }, [lines, typingSpeed, lineDelay])
 
   return (
-    <pre className={className}>
-      {text}
+    <pre className={className} style={style}>
+      {typedLines.join('\n')}
       <span style={{ opacity: showCursor ? 1 : 0 }}> ▍</span>
     </pre>
   )