diff --git a/static/css/style.css b/static/css/style.css
index 407b6f1..e304f05 100644
--- a/static/css/style.css
+++ b/static/css/style.css
@@ -1,21 +1,45 @@
-/* Modern Color Palette & Reset */
+/* Modern Color Palette & Reset (UI/UX Pro Max: SaaS Analytics + Glassmorphism) */
 :root {
-    --primary-color: #6366f1;
-    /* Indigo */
-    --secondary-color: #8b5cf6;
-    /* Violet */
-    --accent-color: #ec4899;
-    /* Pink */
-    --bg-color: #f8fafc;
-    --text-primary: #1e293b;
-    --text-secondary: #64748b;
-    --card-bg: rgba(255, 255, 255, 0.9);
-    --glass-border: 1px solid rgba(255, 255, 255, 0.4);
+    /* Primary: Trust & Intelligence (Deep Blue/Indigo) */
+    --primary-color: #4F46E5;
+    /* Indigo-600 */
+    --primary-light: #818CF8;
+
+    /* Secondary: Vibrant Accent (Purple/Pink for graphs/highlights) */
+    --secondary-color: #D946EF;
+    /* Fuchsia-500 */
+
+    /* Backgrounds */
+    --bg-color: #F8FAFC;
+    /* Slate-50 */
+    --bg-gradient-1: #E0E7FF;
+    /* Indigo-100 */
+    --bg-gradient-2: #FCE7F3;
+    /* Pink-100 */
+
+    /* Glassmorphism Variables */
+    --glass-bg: rgba(255, 255, 255, 0.75);
+    --glass-border: 1px solid rgba(255, 255, 255, 0.6);
+    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
+    --blur-strength: 16px;
+
+    /* Typography */
+    --font-heading: 'Poppins', sans-serif;
+    --font-body: 'Open Sans', sans-serif;
+
+    /* Text Colors */
+    --text-primary: #1E293B;
+    /* Slate-800 */
+    --text-secondary: #64748B;
+    /* Slate-500 */
+    --text-tertiary: #94A3B8;
+
+    /* Spacing & Radius */
+    --radius-lg: 24px;
+    --radius-md: 16px;
+    --radius-sm: 8px;
+
     --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
-    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
-    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
-    --radius-lg: 16px;
-    --radius-md: 12px;
 }
 
 * {
@@ -26,56 +50,74 @@
 }
 
 body {
-    font-family: 'Inter', system-ui, -apple-system, sans-serif;
+    font-family: var(--font-body);
     background: var(--bg-color);
+    /* Dynamic Mesh Gradient Background */
     background-image:
-        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
-        radial-gradient(at 100% 100%, rgba(236, 72, 153, 0.15) 0px, transparent 50%);
+        radial-gradient(at 0% 0%, var(--bg-gradient-1) 0px, transparent 50%),
+        radial-gradient(at 100% 0%, var(--bg-gradient-2) 0px, transparent 50%),
+        radial-gradient(at 100% 100%, #EDF2F7 0px, transparent 50%);
     background-attachment: fixed;
     color: var(--text-primary);
     line-height: 1.5;
     min-height: 100vh;
+    font-size: 14px;
+    /* Slightly smaller base for compactness */
 }
 
 /* Glassmorphism Utilities */
 .glass-card {
-    background: var(--card-bg);
-    backdrop-filter: blur(12px);
-    -webkit-backdrop-filter: blur(12px);
+    background: var(--glass-bg);
+    backdrop-filter: blur(var(--blur-strength));
+    -webkit-backdrop-filter: blur(var(--blur-strength));
     border: var(--glass-border);
-    border-radius: var(--radius-lg);
-    box-shadow: var(--shadow-sm);
+    border-radius: var(--radius-md);
+    box-shadow: var(--glass-shadow);
+    transition: transform 0.2s ease, box-shadow 0.2s ease;
 }
 
-/* Layout */
+.glass-card:hover {
+    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.12);
+}
+
+/* ... Layout ... */
 .app-container {
-    max-width: 1200px;
+    max-width: 1000px;
+    /* More compact container */
     margin: 0 auto;
-    padding: 20px;
+    padding: 24px 16px;
 }
 
 /* Header */
 .main-header {
     text-align: center;
-    padding: 40px 0 30px;
+    padding: 32px 0 24px;
 }
 
 .logo {
     display: inline-flex;
     align-items: center;
     gap: 12px;
-    color: var(--primary-color);
     margin-bottom: 8px;
 }
 
 .logo i {
     font-size: 28px;
+    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
+    -webkit-background-clip: text;
+    background-clip: text;
+    -webkit-text-fill-color: transparent;
 }
 
 .logo h1 {
-    font-size: 28px;
-    font-weight: 800;
-    letter-spacing: -0.5px;
+    font-family: var(--font-heading);
+    font-size: 26px;
+    font-weight: 700;
+    letter-spacing: -0.02em;
+    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
+    -webkit-background-clip: text;
+    background-clip: text;
+    -webkit-text-fill-color: transparent;
 }
 
 .subtitle {
@@ -123,22 +165,34 @@ body {
     font-weight: 600;
     font-size: 14px;
     border-radius: 50px;
-    padding: 10px 20px;
-    transition: all 0.2s;
+    padding: 10px 24px;
+    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
     display: inline-flex;
     align-items: center;
     gap: 8px;
+    position: relative;
+    overflow: hidden;
+}
+
+.btn:active {
+    transform: scale(0.96);
 }
 
 .btn-lg {
-    padding: 12px 28px;
-    font-size: 15px;
+    padding: 14px 32px;
+    font-size: 16px;
 }
 
 .btn-primary {
     background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
     color: white;
-    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
+    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
+    border: 1px solid rgba(255, 255, 255, 0.2);
+}
+
+.btn-primary:hover {
+    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.5);
+    transform: translateY(-2px);
 }
 
 .btn-primary:active {
@@ -216,14 +270,23 @@ body {
 }
 
 .stat-card {
-    background: white;
-    padding: 20px;
+    background: rgba(255, 255, 255, 0.65);
+    backdrop-filter: blur(12px);
+    -webkit-backdrop-filter: blur(12px);
+    padding: 24px;
     border-radius: var(--radius-md);
     box-shadow: var(--shadow-sm);
     display: flex;
     align-items: center;
-    gap: 16px;
-    border: 1px solid #f1f5f9;
+    gap: 20px;
+    border: 1px solid rgba(255, 255, 255, 0.5);
+    transition: transform 0.2s;
+}
+
+.stat-card:hover {
+    transform: translateY(-2px);
+    background: rgba(255, 255, 255, 0.85);
+    box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.05);
 }
 
 .icon-circle {
@@ -343,18 +406,29 @@ body {
 
 /* Daily List */
 .day-card {
-    margin-bottom: 16px;
-    border: 1px solid rgba(255, 255, 255, 0.5);
+    margin-bottom: 20px;
+    border: var(--glass-border);
+    border-radius: var(--radius-md);
     overflow: hidden;
+    background: rgba(255, 255, 255, 0.4);
+    backdrop-filter: blur(8px);
+    -webkit-backdrop-filter: blur(8px);
+    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
+    transition: all 0.3s ease;
+}
+
+.day-card:hover {
+    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
 }
 
 .day-header {
-    padding: 16px 20px;
+    padding: 16px 24px;
     display: flex;
     justify-content: space-between;
     align-items: center;
     cursor: pointer;
-    background: rgba(255, 255, 255, 0.4);
+    background: rgba(255, 255, 255, 0.3);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
 }
 
 .day-info {
diff --git a/static/js/main.js b/static/js/main.js
index d14721e..ca64f72 100644
--- a/static/js/main.js
+++ b/static/js/main.js
@@ -153,25 +153,45 @@ function displayData(data) {
 function renderStats(data) {
     let totalQty = 0;
     let totalAmt = 0;
-    const days = data.daily_summary.length;
-    const uniqueProducts = new Set(); // Simplified unique product count logic based on daily summary data structure might differ, here we approximate or iterate raw if needed.
-    // Correction: Use raw_data for unique products count if available, or iterate all dailies.
+
+    // 1. Calculate Unique Days (based on YYYY-MM-DD)
+    const uniqueDates = new Set();
+
+    // 2. Track Unique Products
+    const uniqueProducts = new Set();
 
     data.daily_summary.forEach(day => {
-        if (day.summary_info) {
+        // Extract YYYY-MM-DD from timestamp "YYYY-MM-DD HH:MM:SS"
+        if (day.date && day.date.length >= 10) {
+            uniqueDates.add(day.date.substring(0, 10));
+        }
+
+        // Sum up totals
+        // Priority: Use the sum of products (day.total_...) if available.
+        // If products are missing/zero but header info (summary_info) exists, use that.
+        if (day.products && day.products.length > 0) {
+            // Use calculated sum from products
+            totalQty += day.total_quantity;
+            totalAmt += day.total_amount;
+        } else if (day.summary_info) {
+            // Fallback to header info if no products parsed
             totalQty += day.summary_info.total_quantity;
             totalAmt += day.summary_info.total_amount;
         } else {
             totalQty += day.total_quantity;
             totalAmt += day.total_amount;
         }
-        day.products.forEach(p => uniqueProducts.add(p.product));
+
+        // Collect unique products
+        if (day.products) {
+            day.products.forEach(p => uniqueProducts.add(p.product));
+        }
     });
 
     // Count Animation
     animateValue(elements.totalAmount, totalAmt, '¥');
     animateValue(elements.totalQuantity, totalQty, '');
-    animateValue(elements.totalDays, days, '');
+    animateValue(elements.totalDays, uniqueDates.size, ''); // Use unique dates count
     animateValue(elements.totalProducts, uniqueProducts.size, '');
 }
 
@@ -205,8 +225,19 @@ function animateValue(obj, end, prefix = '') {
     window.requestAnimationFrame(step);
 }
 
+// Pagination State
+const ITEMS_PER_PAGE = 20;
+let displayedItems = ITEMS_PER_PAGE;
+
 function renderDailyList(data) {
-    elements.dailyData.innerHTML = data.daily_summary.map(day => {
+    const listContainer = elements.dailyData;
+    const totalItems = data.daily_summary.length;
+
+    // Slice data based on current limit
+    const visibleData = data.daily_summary.slice(0, displayedItems);
+
+    // Render list
+    const listHTML = visibleData.map(day => {
         const totalAmt = day.summary_info ? day.summary_info.total_amount : day.total_amount;
         const totalQty = day.summary_info ? day.summary_info.total_quantity : day.total_quantity;
 
@@ -236,6 +267,29 @@ function renderDailyList(data) {
                 </div>
                 `;
     }).join('');
+
+    // Append "Show More" button if needed
+    let buttonHTML = '';
+    if (displayedItems < totalItems) {
+        buttonHTML = `
+            <div class="load-more-container" style="text-align: center; margin-top: 20px;">
+                <button class="btn btn-outline" onclick="loadMoreItems()">
+                    显示更多 (${totalItems - displayedItems} remaining)
+                </button>
+            </div>
+        `;
+    }
+
+    listContainer.innerHTML = listHTML + buttonHTML;
+}
+
+function loadMoreItems() {
+    displayedItems += ITEMS_PER_PAGE;
+    if (state.filteredData) {
+        renderDailyList(state.filteredData);
+    } else if (state.allData) {
+        renderDailyList(state.allData); // Fallback if no filter active
+    }
 }
 
 function toggleDayDetails(header) {
@@ -246,41 +300,55 @@ function toggleDayDetails(header) {
 function applyFilters() {
     if (!state.allData) return;
 
-    let filtered = JSON.parse(JSON.stringify(state.allData));
+    // Reset pagination on filter change
+    displayedItems = ITEMS_PER_PAGE;
 
-    // Search Filter
-    if (state.searchTerm) {
-        filtered.daily_summary = filtered.daily_summary.map(day => {
-            const matchedProducts = day.products.filter(p => p.product.toLowerCase().includes(state.searchTerm));
-            if (matchedProducts.length > 0) {
-                const tQty = matchedProducts.reduce((a, b) => a + b.quantity, 0);
-                const tAmt = matchedProducts.reduce((a, b) => a + b.amount, 0);
-                return { ...day, products: matchedProducts, total_quantity: tQty, total_amount: tAmt, summary_info: null };
-            }
-            return null;
-        }).filter(d => d);
-    }
+    const searchTerm = (state.searchTerm || "").trim();
+    const currentFilter = state.currentFilter;
 
-    // Amount Filter
-    if (state.currentFilter !== 'all') {
-        filtered.daily_summary = filtered.daily_summary.filter(day => {
-            const amt = day.summary_info ? day.summary_info.total_amount : day.total_amount;
-            if (state.currentFilter === 'high') return amt >= 1000;
-            if (state.currentFilter === 'medium') return amt >= 100 && amt < 1000;
-            if (state.currentFilter === 'low') return amt < 100;
-            return true;
-        });
-    }
+    // Filter without cloning for massive performance boost
+    const filteredItems = state.allData.daily_summary.map(day => {
+        // 1. Search filter
+        let matchedProducts = day.products;
+        if (searchTerm) {
+            matchedProducts = day.products.filter(p =>
+                p.product.toLowerCase().includes(searchTerm)
+            );
+        }
 
-    state.filteredData = filtered;
-    renderStats(filtered);
-    renderDailyList(filtered);
+        if (matchedProducts.length === 0) return null;
+
+        // 2. Amount filter
+        const amt = day.summary_info ? day.summary_info.total_amount : day.total_amount;
+        let amountMatch = true;
+
+        if (currentFilter === 'high') amountMatch = (amt >= 1000);
+        else if (currentFilter === 'medium') amountMatch = (amt >= 100 && amt < 1000);
+        else if (currentFilter === 'low') amountMatch = (amt < 100);
+
+        if (amountMatch) {
+            return {
+                ...day,
+                products: matchedProducts,
+                total_quantity: searchTerm ? matchedProducts.reduce((a, b) => a + b.quantity, 0) : day.total_quantity,
+                total_amount: searchTerm ? matchedProducts.reduce((a, b) => a + b.amount, 0) : day.total_amount,
+                summary_info: searchTerm ? null : day.summary_info
+            };
+        }
+        return null;
+    }).filter(d => d);
+
+    state.filteredData = { daily_summary: filteredItems };
+    renderStats(state.filteredData);
+    renderDailyList(state.filteredData);
 }
 
-function filterByAmount(type) {
+function filterByAmount(type, btnElement) {
     state.currentFilter = type;
     document.querySelectorAll('.filter-chip').forEach(btn => btn.classList.remove('active'));
-    event.target.classList.add('active');
+    if (btnElement) {
+        btnElement.classList.add('active');
+    }
     applyFilters();
 }
 
diff --git a/templates/index.html b/templates/index.html
index 9a44f91..f486b47 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -7,7 +7,6 @@
     <title>销售数据分析器</title>
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
     <link rel="stylesheet" href="{{ url_for('static', filename='css/style.css') }}">
-    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap" rel="stylesheet">
 </head>
 
 <body>
@@ -95,10 +94,10 @@
                         <input type="text" id="searchInput" placeholder="搜索商品...">
                     </div>
                     <div class="filter-group">
-                        <button class="filter-chip active" onclick="filterByAmount('all')">全部</button>
-                        <button class="filter-chip" onclick="filterByAmount('high')">高额</button>
-                        <button class="filter-chip" onclick="filterByAmount('medium')">中等</button>
-                        <button class="filter-chip" onclick="filterByAmount('low')">低额</button>
+                        <button class="filter-chip active" onclick="filterByAmount('all', this)">全部</button>
+                        <button class="filter-chip" onclick="filterByAmount('high', this)">高额</button>
+                        <button class="filter-chip" onclick="filterByAmount('medium', this)">中等</button>
+                        <button class="filter-chip" onclick="filterByAmount('low', this)">低额</button>
                     </div>
                     <button class="btn btn-outline btn-sm action-btn" onclick="exportData()">
                         <i class="fas fa-download"></i> 导出