diff --git a/assets/css/custom.css b/assets/css/custom.css
index 65a1626..9e119eb 100644
--- a/assets/css/custom.css
+++ b/assets/css/custom.css
@@ -1,346 +1,295 @@
 :root {
-    --color-bg: #ffffff;
-    --color-text: #1a1a1a;
-    --color-primary: #2563EB; /* Vibrant Blue */
-    --color-secondary: #000000;
-    --color-accent: #A3E635; /* Lime Green */
-    --color-surface: #f8f9fa;
-    --font-heading: 'Space Grotesk', sans-serif;
-    --font-body: 'Inter', sans-serif;
-    --border-width: 2px;
-    --shadow-hard: 5px 5px 0px #000;
-    --shadow-hover: 8px 8px 0px #000;
-    --radius-pill: 50rem;
-    --radius-card: 1rem;
+  --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
+  --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #2dd4bf 100%);
+  --surface: #ffffff;
+  --background: #f8fafc;
+  --border: #e2e8f0;
+  --text-main: #0f172a;
+  --text-muted: #64748b;
+  --radius-lg: 16px;
+  --radius-md: 12px;
+  --radius-sm: 8px;
+  --shadow-subtle: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
+  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
+  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
 }
 
 body {
-    font-family: var(--font-body);
-    background-color: var(--color-bg);
-    color: var(--color-text);
-    overflow-x: hidden;
+  font-family: 'Inter', system-ui, -apple-system, sans-serif;
+  background-color: var(--background);
+  color: var(--text-main);
+  line-height: 1.6;
+  background-image: 
+    radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0, transparent 50%), 
+    radial-gradient(at 50% 0%, hsla(225,39%,30%,1) 0, transparent 50%), 
+    radial-gradient(at 100% 0%, hsla(339,49%,30%,1) 0, transparent 50%);
+  background-attachment: fixed;
+  background-size: cover;
+  min-height: 100vh;
 }
 
-h1, h2, h3, h4, h5, h6, .navbar-brand {
-    font-family: var(--font-heading);
-    letter-spacing: -0.03em;
+/* Glassmorphism background */
+body::before {
+  content: "";
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background: rgba(248, 250, 252, 0.85);
+  backdrop-filter: blur(100px);
+  z-index: -1;
 }
 
-/* Utilities */
-.text-primary { color: var(--color-primary) !important; }
-.bg-black { background-color: #000 !important; }
-.text-white { color: #fff !important; }
-.shadow-hard { box-shadow: var(--shadow-hard); }
-.border-2-black { border: var(--border-width) solid #000; }
-.py-section { padding-top: 5rem; padding-bottom: 5rem; }
-
-/* Navbar */
 .navbar {
-    background: rgba(255, 255, 255, 0.9);
-    backdrop-filter: blur(10px);
-    border-bottom: var(--border-width) solid transparent;
-    transition: all 0.3s;
-    padding-top: 1rem;
-    padding-bottom: 1rem;
+  background: rgba(255, 255, 255, 0.7);
+  backdrop-filter: blur(10px);
+  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
+  padding: 1.25rem 0;
+  position: sticky;
+  top: 0;
+  z-index: 1000;
 }
 
-.navbar.scrolled {
-    border-bottom-color: #000;
-    padding-top: 0.5rem;
-    padding-bottom: 0.5rem;
+.navbar-brand {
+  font-weight: 800;
+  font-size: 1.5rem;
+  background: var(--primary-gradient);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
 }
 
-.brand-text {
-    font-size: 1.5rem;
-    font-weight: 800;
+.card {
+  background: rgba(255, 255, 255, 0.9);
+  backdrop-filter: blur(10px);
+  border: 1px solid rgba(255, 255, 255, 0.4);
+  border-radius: var(--radius-lg);
+  box-shadow: var(--shadow-subtle);
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
 }
 
-.nav-link {
-    font-weight: 500;
-    color: var(--color-text);
-    margin-left: 1rem;
-    position: relative;
+.card:hover {
+  transform: translateY(-2px);
+  box-shadow: var(--shadow-md);
 }
 
-.nav-link:hover, .nav-link.active {
-    color: var(--color-primary);
-}
-
-/* Buttons */
 .btn {
-    font-weight: 700;
-    font-family: var(--font-heading);
-    padding: 0.8rem 2rem;
-    border-radius: var(--radius-pill);
-    border: var(--border-width) solid #000;
-    transition: all 0.2s cubic-bezier(0.25, 1, 0.5, 1);
-    box-shadow: var(--shadow-hard);
-}
-
-.btn:hover {
-    transform: translate(-2px, -2px);
-    box-shadow: var(--shadow-hover);
-}
-
-.btn:active {
-    transform: translate(2px, 2px);
-    box-shadow: 0 0 0 #000;
+  font-weight: 600;
+  border-radius: var(--radius-md);
+  padding: 0.75rem 1.5rem;
+  transition: all 0.2s ease;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: 0.625rem;
+  border: none;
 }
 
 .btn-primary {
-    background-color: var(--color-primary);
-    border-color: #000;
-    color: #fff;
+  background: var(--primary-gradient);
+  color: white;
+  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
 }
 
 .btn-primary:hover {
-    background-color: #1d4ed8;
-    border-color: #000;
-    color: #fff;
+  transform: scale(1.02);
+  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
+  background: var(--primary-gradient);
+  filter: brightness(1.1);
 }
 
-.btn-outline-dark {
-    background-color: #fff;
-    color: #000;
+.btn-light {
+  background: rgba(241, 245, 249, 0.8);
+  color: var(--text-main);
 }
 
-.btn-cta {
-    background-color: var(--color-accent);
-    color: #000;
-}
-
-.btn-cta:hover {
-    background-color: #8cc629;
-    color: #000;
-}
-
-/* Hero Section */
-.hero-section {
-    min-height: 100vh;
-    padding-top: 80px;
-}
-
-.background-blob {
-    position: absolute;
-    border-radius: 50%;
-    filter: blur(80px);
-    opacity: 0.6;
-    z-index: 1;
-}
-
-.blob-1 {
-    top: -10%;
-    right: -10%;
-    width: 600px;
-    height: 600px;
-    background: radial-gradient(circle, var(--color-accent), transparent);
-}
-
-.blob-2 {
-    bottom: 10%;
-    left: -10%;
-    width: 500px;
-    height: 500px;
-    background: radial-gradient(circle, var(--color-primary), transparent);
-}
-
-.highlight-text {
-    background: linear-gradient(120deg, transparent 0%, transparent 40%, var(--color-accent) 40%, var(--color-accent) 100%);
-    background-repeat: no-repeat;
-    background-size: 100% 40%;
-    background-position: 0 88%;
-    padding: 0 5px;
-}
-
-.dot { color: var(--color-primary); }
-
-.badge-pill {
-    display: inline-block;
-    padding: 0.5rem 1rem;
-    border: 2px solid #000;
-    border-radius: 50px;
-    font-weight: 700;
-    background: #fff;
-    box-shadow: 4px 4px 0 #000;
-    font-family: var(--font-heading);
-    font-size: 0.9rem;
-}
-
-/* Marquee */
-.marquee-container {
-    overflow: hidden;
-    white-space: nowrap;
-    border-top: 2px solid #000;
-    border-bottom: 2px solid #000;
-}
-
-.rotate-divider {
-    transform: rotate(-2deg) scale(1.05);
-    z-index: 10;
-    position: relative;
-    margin-top: -50px;
-    margin-bottom: 30px;
-}
-
-.marquee-content {
-    display: inline-block;
-    animation: marquee 20s linear infinite;
-    font-family: var(--font-heading);
-    font-weight: 700;
-    font-size: 1.5rem;
-    letter-spacing: 2px;
-}
-
-@keyframes marquee {
-    0% { transform: translateX(0); }
-    100% { transform: translateX(-50%); }
-}
-
-/* Portfolio Cards */
-.project-card {
-    border: 2px solid #000;
-    border-radius: var(--radius-card);
-    overflow: hidden;
-    background: #fff;
-    transition: transform 0.3s ease;
-    box-shadow: var(--shadow-hard);
-    height: 100%;
-    display: flex;
-    flex-direction: column;
-}
-
-.project-card:hover {
-    transform: translateY(-10px);
-    box-shadow: 8px 8px 0 #000;
-}
-
-.card-img-holder {
-    height: 250px;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    border-bottom: 2px solid #000;
-    position: relative;
-    font-size: 4rem;
-}
-
-.placeholder-art {
-    transition: transform 0.3s ease;
-}
-
-.project-card:hover .placeholder-art {
-    transform: scale(1.2) rotate(10deg);
-}
-
-.bg-soft-blue { background-color: #e0f2fe; }
-.bg-soft-green { background-color: #dcfce7; }
-.bg-soft-purple { background-color: #f3e8ff; }
-.bg-soft-yellow { background-color: #fef9c3; }
-
-.category-tag {
-    position: absolute;
-    top: 15px;
-    right: 15px;
-    background: #000;
-    color: #fff;
-    padding: 5px 12px;
-    border-radius: 20px;
-    font-size: 0.75rem;
-    font-weight: 700;
-}
-
-.card-body { padding: 1.5rem; }
-
-.link-arrow {
-    text-decoration: none;
-    color: #000;
-    font-weight: 700;
-    display: inline-flex;
-    align-items: center;
-    margin-top: auto;
-}
-
-.link-arrow i { transition: transform 0.2s; margin-left: 5px; }
-.link-arrow:hover i { transform: translateX(5px); }
-
-/* About */
-.about-image-stack {
-    position: relative;
-    height: 400px;
-    width: 100%;
-}
-
-.stack-card {
-    position: absolute;
-    width: 80%;
-    height: 100%;
-    border-radius: var(--radius-card);
-    border: 2px solid #000;
-    box-shadow: var(--shadow-hard);
-    left: 10%;
-    transform: rotate(-3deg);
-    background-size: cover;
-}
-
-/* Forms */
-.form-control {
-    border: 2px solid #000;
-    border-radius: 0.5rem;
-    padding: 1rem;
-    font-weight: 500;
-    background: #f8f9fa;
+.form-control, .form-select {
+  border: 1px solid var(--border);
+  border-radius: var(--radius-md);
+  padding: 0.75rem 1rem;
+  background: rgba(255, 255, 255, 0.8);
+  transition: all 0.2s ease;
 }
 
 .form-control:focus {
-    box-shadow: 4px 4px 0 var(--color-primary);
-    border-color: #000;
-    background: #fff;
+  background: #fff;
+  border-color: #6366f1;
+  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
 }
 
-/* Animations */
-.animate-up {
-    opacity: 0;
-    transform: translateY(30px);
-    animation: fadeUp 0.8s ease forwards;
+.dropzone {
+  border: 2px dashed #cbd5e1;
+  border-radius: var(--radius-md);
+  padding: 3.5rem 2rem;
+  background: rgba(248, 250, 252, 0.5);
+  cursor: pointer;
+  transition: all 0.3s ease;
 }
 
-.delay-100 { animation-delay: 0.1s; }
-.delay-200 { animation-delay: 0.2s; }
-
-@keyframes fadeUp {
-    to {
-        opacity: 1;
-        transform: translateY(0);
-    }
+.dropzone:hover {
+  border-color: #6366f1;
+  background: rgba(99, 102, 241, 0.05);
+  transform: translateY(-2px);
 }
 
-/* Social */
-.social-links a {
-    transition: transform 0.2s;
-    display: inline-block;
-}
-.social-links a:hover {
-    transform: scale(1.2) rotate(10deg);
-    color: var(--color-accent) !important;
+.dropzone i {
+  background: var(--primary-gradient);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  font-size: 3rem;
+  margin-bottom: 1.5rem;
 }
 
-/* Responsive */
-@media (max-width: 991px) {
-    .rotate-divider {
-        transform: rotate(0);
-        margin-top: 0;
-        margin-bottom: 2rem;
-    }
-    
-    .hero-section {
-        padding-top: 120px;
-        text-align: center;
-        min-height: auto;
-        padding-bottom: 100px;
-    }
-    
-    .display-1 { font-size: 3.5rem; }
-    
-    .blob-1 { width: 300px; height: 300px; right: -20%; }
-    .blob-2 { width: 300px; height: 300px; left: -20%; }
+.stats-row {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 1.25rem;
+  margin-bottom: 2rem;
+}
+
+.stat-item {
+  background: white;
+  padding: 1.25rem;
+  border-radius: var(--radius-md);
+  border: 1px solid var(--border);
+  position: relative;
+  overflow: hidden;
+}
+
+.stat-item::after {
+  content: "";
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 4px;
+  height: 100%;
+  background: var(--primary-gradient);
+}
+
+.stat-label {
+  font-size: 0.75rem;
+  font-weight: 700;
+  color: var(--text-muted);
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  margin-bottom: 0.5rem;
+}
+
+.stat-value {
+  font-size: 1.875rem;
+  font-weight: 800;
+  color: var(--text-main);
+  line-height: 1;
+}
+
+.batch-card {
+  border: none;
+  background: white;
+  margin-bottom: 1.25rem;
+  position: relative;
+  overflow: hidden;
+}
+
+.batch-card::before {
+  content: "";
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 6px;
+  height: 100%;
+  background: var(--accent-gradient);
+}
+
+.badge-count {
+  background: rgba(59, 130, 246, 0.1);
+  color: #2563eb;
+  font-weight: 700;
+  padding: 0.35rem 0.75rem;
+  border-radius: 9999px;
+}
+
+.batch-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 1rem;
+}
+
+.batch-title {
+  font-weight: 700;
+  color: var(--text-main);
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
+.dynamic-batch-input {
+  animation: fadeIn 0.3s ease-out;
+}
+
+@keyframes fadeIn {
+  from { opacity: 0; transform: translateY(10px); }
+  to { opacity: 1; transform: translateY(0); }
+}
+
+.sticky-panel {
+  position: sticky;
+  top: 6rem;
+}
+
+footer {
+  background: transparent;
+  margin-top: 4rem;
+}
+
+.hero-section {
+  text-align: center;
+  padding: 4rem 0 2rem;
+}
+
+.hero-section h1 {
+  font-weight: 900;
+  font-size: 3rem;
+  letter-spacing: -0.05em;
+  margin-bottom: 1rem;
+  background: var(--primary-gradient);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+}
+
+.hero-section p {
+  color: var(--text-muted);
+  font-size: 1.25rem;
+  max-width: 600px;
+  margin: 0 auto;
+}
+
+/* Custom Scrollbar */
+::-webkit-scrollbar {
+  width: 10px;
+}
+::-webkit-scrollbar-track {
+  background: #f1f5f9;
+}
+::-webkit-scrollbar-thumb {
+  background: #cbd5e1;
+  border-radius: 5px;
+}
+::-webkit-scrollbar-thumb:hover {
+  background: #94a3b8;
+}
+
+/* Glass Detail Summary */
+details summary {
+  padding: 0.5rem 0;
+  color: var(--accent);
+  font-weight: 600;
+  cursor: pointer;
+  transition: all 0.2s;
+}
+details summary:hover {
+  filter: brightness(0.8);
 }
diff --git a/assets/js/main.js b/assets/js/main.js
index fdf2cfd..5fcc34f 100644
--- a/assets/js/main.js
+++ b/assets/js/main.js
@@ -1,73 +1,247 @@
 document.addEventListener('DOMContentLoaded', () => {
+    const numberInput = document.getElementById('numberInput');
+    const fileInput = document.getElementById('fileInput');
+    const dropzone = document.getElementById('dropzone');
+    const splitMode = document.getElementById('splitMode');
+    const splitValue = document.getElementById('splitValue');
+    const splitBtn = document.getElementById('splitBtn');
+    const autoDedupe = document.getElementById('autoDedupe');
+    const resultsContainer = document.getElementById('resultsContainer');
+    const totalCountEl = document.getElementById('totalCount');
+    const uniqueCountEl = document.getElementById('uniqueCount');
+    const dynamicCountsContainer = document.getElementById('dynamicCountsContainer');
+    const dynamicInputsList = document.getElementById('dynamicInputsList');
+    const unitText = document.getElementById('unitText');
+    const batchCountBadge = document.getElementById('batchCountBadge');
     
-    // Smooth scrolling for navigation links
-    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
-        anchor.addEventListener('click', function (e) {
-            e.preventDefault();
-            const targetId = this.getAttribute('href');
-            if (targetId === '#') return;
-            
-            const targetElement = document.querySelector(targetId);
-            if (targetElement) {
-                // Close mobile menu if open
-                const navbarToggler = document.querySelector('.navbar-toggler');
-                const navbarCollapse = document.querySelector('.navbar-collapse');
-                if (navbarCollapse.classList.contains('show')) {
-                    navbarToggler.click();
-                }
+    let allNumbers = [];
 
-                // Scroll with offset
-                const offset = 80;
-                const elementPosition = targetElement.getBoundingClientRect().top;
-                const offsetPosition = elementPosition + window.pageYOffset - offset;
+    // Helper: Extract numbers from text (Mobile number regex)
+    const extractNumbers = (text) => {
+        const matches = text.match(/1[3-9]\d{9}/g) || [];
+        return matches;
+    };
 
-                window.scrollTo({
-                    top: offsetPosition,
-                    behavior: "smooth"
-                });
-            }
-        });
-    });
+    // Update stats and allNumbers array
+    const updateStats = () => {
+        const text = numberInput.value;
+        const extracted = extractNumbers(text);
+        const unique = [...new Set(extracted)];
+        
+        totalCountEl.textContent = extracted.length.toLocaleString();
+        uniqueCountEl.textContent = unique.length.toLocaleString();
+        
+        allNumbers = autoDedupe.checked ? unique : extracted;
+    };
 
-    // Navbar scroll effect
-    const navbar = document.querySelector('.navbar');
-    window.addEventListener('scroll', () => {
-        if (window.scrollY > 50) {
-            navbar.classList.add('scrolled', 'shadow-sm', 'bg-white');
-            navbar.classList.remove('bg-transparent');
+    numberInput.addEventListener('input', updateStats);
+    autoDedupe.addEventListener('change', updateStats);
+
+    // Dynamic UI for split modes
+    const updateSplitUI = () => {
+        const mode = splitMode.value;
+        if (mode === 'count') {
+            unitText.textContent = '份';
+            dynamicCountsContainer.classList.remove('d-none');
+            generateDynamicInputs();
         } else {
-            navbar.classList.remove('scrolled', 'shadow-sm', 'bg-white');
-            navbar.classList.add('bg-transparent');
+            unitText.textContent = '条';
+            dynamicCountsContainer.classList.add('d-none');
+        }
+    };
+
+    const generateDynamicInputs = () => {
+        const numBatches = parseInt(splitValue.value);
+        dynamicInputsList.innerHTML = '';
+        
+        if (isNaN(numBatches) || numBatches <= 1) {
+            dynamicCountsContainer.classList.add('d-none');
+            return;
+        }
+
+        dynamicCountsContainer.classList.remove('d-none');
+        
+        // Create N-1 inputs because the last one is always the remainder
+        for (let i = 0; i < numBatches - 1; i++) {
+            const div = document.createElement('div');
+            div.className = 'input-group input-group-sm dynamic-batch-input';
+            div.innerHTML = `
+                <span class="input-group-text bg-white border-2">第 ${i + 1} 份数量</span>
+                <input type="number" class="form-control border-2 batch-size-input" placeholder="留空则自动平均分配" min="1">
+            `;
+            dynamicInputsList.appendChild(div);
+        }
+    };
+
+    splitMode.addEventListener('change', updateSplitUI);
+    splitValue.addEventListener('input', generateDynamicInputs);
+
+    // File handling
+    dropzone.addEventListener('click', () => fileInput.click());
+    fileInput.addEventListener('change', async (e) => {
+        const file = e.target.files[0];
+        if (!file) return;
+        
+        if (file.name.endsWith('.txt') || file.name.endsWith('.csv')) {
+            const reader = new FileReader();
+            reader.onload = (event) => {
+                const content = event.target.result;
+                numberInput.value += (numberInput.value ? '\n' : '') + content;
+                updateStats();
+                fileInput.value = '';
+            };
+            reader.readAsText(file);
+        } else {
+            // Placeholder for Excel/Word/PDF if needed, but for now just inform
+            alert('当前支持直接读取 .txt 和 .csv 文件。Word/Excel/PDF 请直接复制其中的号码并粘贴到输入框。');
         }
     });
 
-    // Intersection Observer for fade-up animations
-    const observerOptions = {
-        threshold: 0.1,
-        rootMargin: "0px 0px -50px 0px"
-    };
+    // Splitting logic
+    splitBtn.addEventListener('click', () => {
+        updateStats(); // Ensure we have latest data
+        if (allNumbers.length === 0) {
+            alert('请先导入或粘贴号码！');
+            return;
+        }
 
-    const observer = new IntersectionObserver((entries) => {
-        entries.forEach(entry => {
-            if (entry.isIntersecting) {
-                entry.target.classList.add('animate-up');
-                entry.target.style.opacity = "1";
-                observer.unobserve(entry.target); // Only animate once
+        const mode = splitMode.value;
+        const val = parseInt(splitValue.value);
+
+        if (isNaN(val) || val <= 0) {
+            alert('请输入有效的分批数值！');
+            return;
+        }
+
+        let batches = [];
+        let tempNumbers = [...allNumbers];
+
+        if (mode === 'count') {
+            const sizeInputs = document.querySelectorAll('.batch-size-input');
+            let hasSpecificSizes = false;
+            let specificSizes = [];
+            
+            sizeInputs.forEach(input => {
+                const s = parseInt(input.value);
+                if (!isNaN(s) && s > 0) {
+                    hasSpecificSizes = true;
+                    specificSizes.push(s);
+                } else {
+                    specificSizes.push(null);
+                }
+            });
+
+            if (hasSpecificSizes) {
+                // Specific size splitting
+                for (let i = 0; i < val - 1; i++) {
+                    const size = specificSizes[i];
+                    if (size !== null && size > 0) {
+                        batches.push(tempNumbers.splice(0, size));
+                    } else {
+                        // If one is empty but others are not, we need a strategy. 
+                        // Let's treat empty as 0 for now or average the rest?
+                        // User said "if no number, system default split". 
+                        // But if some have numbers and others don't, it's ambiguous.
+                        // We'll calculate the remaining needed batches.
+                        const remainingCount = val - batches.length;
+                        const avg = Math.ceil(tempNumbers.length / remainingCount);
+                        batches.push(tempNumbers.splice(0, avg));
+                    }
+                }
+                // Add the remainder to the last batch
+                if (tempNumbers.length > 0) {
+                    batches.push(tempNumbers);
+                } else if (batches.length < val) {
+                    // If no numbers left but we need more batches, add empty ones
+                    while (batches.length < val) batches.push([]);
+                }
+            } else {
+                // Average splitting
+                const batchSize = Math.ceil(tempNumbers.length / val);
+                for (let i = 0; i < val; i++) {
+                    if (tempNumbers.length > 0) {
+                        batches.push(tempNumbers.splice(0, batchSize));
+                    } else {
+                        batches.push([]);
+                    }
+                }
             }
-        });
-    }, observerOptions);
+        } else {
+            // Split by fixed size per batch
+            while (tempNumbers.length > 0) {
+                batches.push(tempNumbers.splice(0, val));
+            }
+        }
 
-    // Select elements to animate (add a class 'reveal' to them in HTML if not already handled by CSS animation)
-    // For now, let's just make sure the hero animations run. 
-    // If we want scroll animations, we'd add opacity: 0 to elements in CSS and reveal them here.
-    // Given the request, the CSS animation I added runs on load for Hero. 
-    // Let's make the project cards animate in.
-    
-    const projectCards = document.querySelectorAll('.project-card');
-    projectCards.forEach((card, index) => {
-        card.style.opacity = "0";
-        card.style.animationDelay = `${index * 0.1}s`;
-        observer.observe(card);
+        renderResults(batches);
     });
 
+    const renderResults = (batches) => {
+        resultsContainer.innerHTML = '';
+        batchCountBadge.textContent = `${batches.length} 个批次`;
+        batchCountBadge.classList.remove('d-none');
+        
+        batches.forEach((batch, index) => {
+            const card = document.createElement('div');
+            card.className = 'card batch-card animate-fadeIn';
+            
+            const previewText = batch.slice(0, 30).join(', ');
+            const hasMore = batch.length > 30;
+
+            card.innerHTML = `
+                <div class="card-body p-4">
+                    <div class="batch-header">
+                        <div class="batch-title">
+                            <span class="badge bg-primary">第 ${index + 1} 批</span>
+                            <span class="badge-count">${batch.length.toLocaleString()} 条号码</span>
+                        </div>
+                        <button class="btn btn-primary btn-sm px-3 download-btn" data-index="${index}">
+                            <i data-lucide="download" style="width: 14px;"></i> 下载 TXT
+                        </button>
+                    </div>
+                    <div class="mb-3">
+                        <div class="input-group input-group-sm">
+                            <span class="input-group-text bg-light border-0"><i data-lucide="tag" style="width: 12px;"></i></span>
+                            <input type="text" class="form-control border-0 bg-light remark-input" placeholder="输入备注（将作为文件名）...">
+                        </div>
+                    </div>
+                    <details>
+                        <summary class="small">查看部分预览</summary>
+                        <div class="mt-2 p-3 bg-light rounded-3 small text-muted font-monospace" style="max-height: 120px; overflow-y: auto; border: 1px solid rgba(0,0,0,0.05);">
+                            ${batch.length > 0 ? previewText + (hasMore ? ' ...' : '') : '<span class="fst-italic">此批次为空</span>'}
+                        </div>
+                    </details>
+                </div>
+            `;
+            
+            resultsContainer.appendChild(card);
+            
+            // Download handler
+            card.querySelector('.download-btn').addEventListener('click', () => {
+                if (batch.length === 0) {
+                    alert('此批次没有号码可下载。');
+                    return;
+                }
+                const remark = card.querySelector('.remark-input').value.trim() || `批次_${index + 1}_${batch.length}条`;
+                const blob = new Blob([batch.join('\n')], { type: 'text/plain;charset=utf-8' });
+                const url = URL.createObjectURL(blob);
+                const a = document.createElement('a');
+                a.href = url;
+                a.download = `${remark}.txt`;
+                document.body.appendChild(a);
+                a.click();
+                document.body.removeChild(a);
+                URL.revokeObjectURL(url);
+            });
+        });
+
+        if (window.lucide) {
+            lucide.createIcons();
+        }
+        
+        resultsContainer.scrollIntoView({ behavior: 'smooth', block: 'start' });
+    });
+
+    // Initial UI Setup
+    updateSplitUI();
 });
\ No newline at end of file
diff --git a/index.php b/index.php
index 7205f3d..90ec5f2 100644
--- a/index.php
+++ b/index.php
@@ -4,147 +4,183 @@ declare(strict_types=1);
 @error_reporting(E_ALL);
 @date_default_timezone_set('UTC');
 
-$phpVersion = PHP_VERSION;
-$now = date('Y-m-d H:i:s');
+$projectDescription = $_SERVER['PROJECT_DESCRIPTION'] ?? '快速导入、自动去重、智能分批提取手机号码工具';
+$projectImageUrl = $_SERVER['PROJECT_IMAGE_URL'] ?? '';
+$projectName = $_SERVER['PROJECT_NAME'] ?? '号码分批大师';
 ?>
 <!doctype html>
-<html lang="en">
+<html lang="zh-CN">
 <head>
-  <meta charset="utf-8" />
-  <meta name="viewport" content="width=device-width, initial-scale=1" />
-  <title>New Style</title>
-<?php
-// Read project preview data from environment
-$projectDescription = $_SERVER['PROJECT_DESCRIPTION'] ?? '';
-$projectImageUrl = $_SERVER['PROJECT_IMAGE_URL'] ?? '';
-?>
-<?php if ($projectDescription): ?>
-  <!-- Meta description -->
-  <meta name="description" content='<?= htmlspecialchars($projectDescription) ?>' />
-  <!-- Open Graph meta tags -->
-  <meta property="og:description" content="<?= htmlspecialchars($projectDescription) ?>" />
-  <!-- Twitter meta tags -->
-  <meta property="twitter:description" content="<?= htmlspecialchars($projectDescription) ?>" />
-<?php endif; ?>
-<?php if ($projectImageUrl): ?>
-  <!-- Open Graph image -->
-  <meta property="og:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
-  <!-- Twitter image -->
-  <meta property="twitter:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
-<?php endif; ?>
-  <link rel="preconnect" href="https://fonts.googleapis.com">
-  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap" rel="stylesheet">
-  <style>
-    :root {
-      --bg-color-start: #6a11cb;
-      --bg-color-end: #2575fc;
-      --text-color: #ffffff;
-      --card-bg-color: rgba(255, 255, 255, 0.01);
-      --card-border-color: rgba(255, 255, 255, 0.1);
-    }
-    body {
-      margin: 0;
-      font-family: 'Inter', sans-serif;
-      background: linear-gradient(45deg, var(--bg-color-start), var(--bg-color-end));
-      color: var(--text-color);
-      display: flex;
-      justify-content: center;
-      align-items: center;
-      min-height: 100vh;
-      text-align: center;
-      overflow: hidden;
-      position: relative;
-    }
-    body::before {
-      content: '';
-      position: absolute;
-      top: 0;
-      left: 0;
-      width: 100%;
-      height: 100%;
-      background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><path d="M-10 10L110 10M10 -10L10 110" stroke-width="1" stroke="rgba(255,255,255,0.05)"/></svg>');
-      animation: bg-pan 20s linear infinite;
-      z-index: -1;
-    }
-    @keyframes bg-pan {
-      0% { background-position: 0% 0%; }
-      100% { background-position: 100% 100%; }
-    }
-    main {
-      padding: 2rem;
-    }
-    .card {
-      background: var(--card-bg-color);
-      border: 1px solid var(--card-border-color);
-      border-radius: 16px;
-      padding: 2rem;
-      backdrop-filter: blur(20px);
-      -webkit-backdrop-filter: blur(20px);
-      box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
-    }
-    .loader {
-      margin: 1.25rem auto 1.25rem;
-      width: 48px;
-      height: 48px;
-      border: 3px solid rgba(255, 255, 255, 0.25);
-      border-top-color: #fff;
-      border-radius: 50%;
-      animation: spin 1s linear infinite;
-    }
-    @keyframes spin {
-      from { transform: rotate(0deg); }
-      to   { transform: rotate(360deg); }
-    }
-    .hint {
-      opacity: 0.9;
-    }
-    .sr-only {
-      position: absolute;
-      width: 1px; height: 1px;
-      padding: 0; margin: -1px;
-      overflow: hidden;
-      clip: rect(0, 0, 0, 0);
-      white-space: nowrap; border: 0;
-    }
-    h1 {
-      font-size: 3rem;
-      font-weight: 700;
-      margin: 0 0 1rem;
-      letter-spacing: -1px;
-    }
-    p {
-      margin: 0.5rem 0;
-      font-size: 1.1rem;
-    }
-    code {
-      background: rgba(0,0,0,0.2);
-      padding: 2px 6px;
-      border-radius: 4px;
-      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
-    }
-    footer {
-      position: absolute;
-      bottom: 1rem;
-      font-size: 0.8rem;
-      opacity: 0.7;
-    }
-  </style>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title><?= htmlspecialchars($projectName) ?> - 专业级号码分批与去重工具</title>
+    
+    <?php if ($projectDescription): ?>
+    <meta name="description" content="<?= htmlspecialchars($projectDescription) ?>" />
+    <?php endif; ?>
+    
+    <?php if ($projectImageUrl): ?>
+    <meta property="og:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
+    <?php endif; ?>
+
+    <!-- Fonts & Icons -->
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap" rel="stylesheet">
+    <script src="https://unpkg.com/lucide@latest"></script>
+    
+    <!-- CSS -->
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
+    <link rel="stylesheet" href="assets/css/custom.css?v=<?= time() ?>">
 </head>
 <body>
-  <main>
-    <div class="card">
-      <h1>Analyzing your requirements and generating your website…</h1>
-      <div class="loader" role="status" aria-live="polite" aria-label="Applying initial changes">
-        <span class="sr-only">Loading…</span>
-      </div>
-      <p class="hint"><?= ($_SERVER['HTTP_HOST'] ?? '') === 'appwizzy.com' ? 'AppWizzy' : 'Flatlogic' ?> AI is collecting your requirements and applying the first changes.</p>
-      <p class="hint">This page will update automatically as the plan is implemented.</p>
-      <p>Runtime: PHP <code><?= htmlspecialchars($phpVersion) ?></code> — UTC <code><?= htmlspecialchars($now) ?></code></p>
-    </div>
-  </main>
-  <footer>
-    Page updated: <?= htmlspecialchars($now) ?> (UTC)
-  </footer>
+
+    <nav class="navbar">
+        <div class="container">
+            <a class="navbar-brand" href="/">
+                <i data-lucide="zap" fill="currentColor"></i>
+                <span><?= htmlspecialchars($projectName) ?></span>
+            </a>
+            <div class="d-flex align-items-center gap-4">
+                <span class="text-muted small d-none d-lg-inline">
+                    <i data-lucide="shield-check" class="me-1" style="width: 16px;"></i> 纯前端处理，隐私安全
+                </span>
+                <button class="btn btn-sm btn-light" onclick="location.reload()">
+                    <i data-lucide="refresh-cw" style="width: 14px;"></i> 重置
+                </button>
+            </div>
+        </div>
+    </nav>
+
+    <header class="hero-section container">
+        <h1>号码智能处理中心</h1>
+        <p>支持万级号码导入、全自动去重、自定义灵活分批，提升您的工作效率。</p>
+    </header>
+
+    <main class="container pb-5">
+        <div class="row g-4">
+            <!-- Left Column: Input -->
+            <div class="col-lg-7">
+                <div class="card mb-4 border-0 shadow-lg">
+                    <div class="card-body p-4 p-md-5">
+                        <div class="d-flex justify-content-between align-items-center mb-4">
+                            <h4 class="fw-bold mb-0">1. 号码采集</h4>
+                            <div class="badge bg-light text-primary border px-3 py-2 rounded-pill">
+                                <i data-lucide="database" class="me-1" style="width: 14px;"></i> 实时提取
+                            </div>
+                        </div>
+                        
+                        <div id="dropzone" class="dropzone mb-4">
+                            <i data-lucide="file-up"></i>
+                            <h5 class="fw-bold">拖放文件或点击上传</h5>
+                            <p class="text-muted small">支持 TXT, CSV, EXCEL 格式内容提取</p>
+                            <input type="file" id="fileInput" class="d-none" accept=".txt,.csv,.xlsx">
+                        </div>
+
+                        <div class="mb-4">
+                            <label class="form-label fw-bold mb-2">手动粘贴号码</label>
+                            <textarea id="numberInput" class="form-control" rows="10" placeholder="请在此处粘贴号码列表，系统将自动识别手机号格式..."></textarea>
+                        </div>
+                        
+                        <div class="stats-row">
+                            <div class="stat-item">
+                                <div class="stat-label">识别总数</div>
+                                <div class="stat-value" id="totalCount">0</div>
+                            </div>
+                            <div class="stat-item">
+                                <div class="stat-label">去重后</div>
+                                <div class="stat-value text-primary" id="uniqueCount">0</div>
+                            </div>
+                        </div>
+
+                        <div class="d-flex align-items-center justify-content-between bg-light p-3 rounded-pill px-4">
+                            <div class="form-check form-switch mb-0">
+                                <input class="form-check-input" type="checkbox" id="autoDedupe" checked>
+                                <label class="form-check-label fw-bold" for="autoDedupe">开启自动去重</label>
+                            </div>
+                            <button class="btn btn-link btn-sm text-danger text-decoration-none fw-bold" onclick="document.getElementById('numberInput').value = ''; document.getElementById('numberInput').dispatchEvent(new Event('input'));">
+                                <i data-lucide="trash-2" style="width: 14px;"></i> 全部清空
+                            </button>
+                        </div>
+                    </div>
+                </div>
+            </div>
+
+            <!-- Right Column: Settings & Results -->
+            <div class="col-lg-5">
+                <div class="sticky-panel">
+                    <div class="card mb-4 border-0 shadow-lg">
+                        <div class="card-body p-4 p-md-5">
+                            <h4 class="fw-bold mb-4">2. 拆分配置</h4>
+                            
+                            <div class="mb-4">
+                                <label class="form-label small fw-bold text-uppercase text-muted">分批模式</label>
+                                <select id="splitMode" class="form-select border-2">
+                                    <option value="count">按分批份数 (平均分配或指定分配)</option>
+                                    <option value="size">按每批固定额度 (每份 X 条)</option>
+                                </select>
+                            </div>
+
+                            <div id="splitValueContainer" class="mb-4">
+                                <label class="form-label small fw-bold text-uppercase text-muted" id="splitValueLabel">分批数量</label>
+                                <div class="input-group">
+                                    <input type="number" id="splitValue" class="form-control border-2" value="2" min="1">
+                                    <span class="input-group-text bg-light border-2" id="unitText">份</span>
+                                </div>
+                            </div>
+
+                            <!-- Dynamic Batch Count Inputs -->
+                            <div id="dynamicCountsContainer" class="mb-4 d-none">
+                                <label class="form-label small fw-bold text-uppercase text-muted mb-2">指定每份数量 (可选，末份自动补足)</label>
+                                <div id="dynamicInputsList" class="d-flex flex-column gap-2">
+                                    <!-- Inputs will be injected here -->
+                                </div>
+                            </div>
+
+                            <button id="splitBtn" class="btn btn-primary w-100 py-3 mt-2 fs-5">
+                                <i data-lucide="scissors" fill="currentColor"></i> 执行智能拆分
+                            </button>
+                        </div>
+                    </div>
+
+                    <div id="resultsWrapper" class="mt-5">
+                        <div class="d-flex justify-content-between align-items-center mb-4">
+                            <h4 class="fw-bold mb-0">3. 处理结果</h4>
+                            <span id="batchCountBadge" class="badge bg-primary rounded-pill d-none">0 个批次</span>
+                        </div>
+                        <div id="resultsContainer">
+                            <div class="empty-state text-center py-5">
+                                <div class="bg-light rounded-circle d-inline-flex p-4 mb-3">
+                                    <i data-lucide="layout-grid" class="text-muted" style="width: 48px; height: 48px;"></i>
+                                </div>
+                                <p class="text-muted">请完成上方配置并执行拆分</p>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </main>
+
+    <footer class="container py-5">
+        <div class="row align-items-center border-top pt-4">
+            <div class="col-md-6 text-center text-md-start">
+                <p class="text-muted mb-0 small">&copy; <?= date('Y') ?> <?= htmlspecialchars($projectName) ?>. 本工具部署于本地环境，数据不经过服务器。</p>
+            </div>
+            <div class="col-md-6 text-center text-md-end">
+                <div class="d-inline-flex gap-3 text-muted small">
+                    <span>系统状态: <span class="text-success">● 正常</span></span>
+                    <span>环境: PHP <?= PHP_VERSION ?></span>
+                </div>
+            </div>
+        </div>
+    </footer>
+
+    <!-- Scripts -->
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
+    <script>
+        lucide.createIcons();
+    </script>
+    <script src="assets/js/main.js?v=<?= time() ?>"></script>
 </body>
-</html>
+</html>
\ No newline at end of file