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audiobook-player/static/css/style.css

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+/* ===== Audiobook Player - Minimalist Immersive Design ===== */
+
+/* CSS Variables for theming */
+:root {
+    --bg-primary: #F5F1E8;
+    --bg-secondary: #FFFFFF;
+    --bg-card: #FFFFFF;
+    --text-primary: #2C2C2C;
+    --text-secondary: #666666;
+    --text-muted: #999999;
+    --accent: #8B7355;
+    --accent-light: #A68B6A;
+    --border: #E5E0D5;
+    --shadow: rgba(0, 0, 0, 0.08);
+    --player-bg: rgba(255, 255, 255, 0.95);
+    --progress-bg: #E5E0D5;
+    --progress-fill: #8B7355;
+}
+
+.dark-mode {
+    --bg-primary: #1A1A1A;
+    --bg-secondary: #252525;
+    --bg-card: #2A2A2A;
+    --text-primary: #E8E1D1;
+    --text-secondary: #B8B0A0;
+    --text-muted: #888888;
+    --accent: #A68B6A;
+    --accent-light: #C4A882;
+    --border: #3A3A3A;
+    --shadow: rgba(0, 0, 0, 0.3);
+    --player-bg: rgba(40, 40, 40, 0.98);
+    --progress-bg: #3A3A3A;
+    --progress-fill: #A68B6A;
+}
+
+/* Reset and Base */
+* {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+}
+
+html {
+    font-size: 16px;
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+}
+
+body {
+    font-family: Georgia, "Times New Roman", serif;
+    background-color: var(--bg-primary);
+    color: var(--text-primary);
+    line-height: 1.6;
+    transition: background-color 0.3s ease, color 0.3s ease;
+    overflow-x: hidden;
+}
+
+/* App Container */
+.app {
+    min-height: 100vh;
+    display: flex;
+    flex-direction: column;
+}
+
+/* ===== Header ===== */
+.header {
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    height: 56px;
+    background: var(--bg-secondary);
+    border-bottom: 1px solid var(--border);
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    padding: 0 16px;
+    z-index: 1000;
+    box-shadow: 0 1px 3px var(--shadow);
+}
+
+.header-title {
+    font-size: 1.1rem;
+    font-weight: 600;
+    color: var(--text-primary);
+    flex: 1;
+    text-align: center;
+    margin: 0 10px;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+
+/* Navigation Buttons */
+.nav-btn {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    background: none;
+    border: none;
+    color: var(--accent);
+    font-size: 0.9rem;
+    cursor: pointer;
+    padding: 8px 12px;
+    border-radius: 8px;
+    transition: background 0.2s;
+}
+
+.nav-btn:hover {
+    background: var(--bg-primary);
+}
+
+.nav-icon {
+    font-size: 0.8rem;
+}
+
+.back-btn .nav-text {
+    display: none;
+}
+
+@media (min-width: 400px) {
+    .back-btn .nav-text {
+        display: inline;
+    }
+}
+
+/* Theme Toggle */
+.theme-toggle {
+    background: none;
+    border: none;
+    font-size: 1.2rem;
+    cursor: pointer;
+    padding: 8px;
+    border-radius: 50%;
+    transition: transform 0.2s;
+}
+
+.theme-toggle:hover {
+    transform: scale(1.1);
+}
+
+/* ===== Main Content ===== */
+.main-content {
+    flex: 1;
+    padding: 72px 16px 24px;
+    max-width: 800px;
+    margin: 0 auto;
+    width: 100%;
+}
+
+/* Welcome Section */
+.welcome {
+    text-align: center;
+    margin-bottom: 32px;
+}
+
+.welcome h2 {
+    font-size: 1.5rem;
+    margin-bottom: 8px;
+    color: var(--text-primary);
+}
+
+.subtitle {
+    color: var(--text-muted);
+    font-size: 0.9rem;
+}
+
+/* ===== Source Cards (Home) ===== */
+.sources-grid {
+    display: grid;
+    gap: 16px;
+}
+
+.source-card {
+    display: flex;
+    align-items: center;
+    gap: 16px;
+    background: var(--bg-card);
+    border-radius: 16px;
+    padding: 20px;
+    text-decoration: none;
+    color: inherit;
+    box-shadow: 0 2px 8px var(--shadow);
+    transition: transform 0.2s, box-shadow 0.2s;
+    min-height: 80px;
+}
+
+.source-card:hover {
+    transform: translateY(-2px);
+    box-shadow: 0 4px 16px var(--shadow);
+}
+
+.source-icon {
+    font-size: 2.5rem;
+    flex-shrink: 0;
+}
+
+.source-info {
+    flex: 1;
+}
+
+.source-name {
+    font-size: 1.1rem;
+    font-weight: 600;
+    margin-bottom: 4px;
+    color: var(--text-primary);
+}
+
+.source-count {
+    font-size: 0.85rem;
+    color: var(--text-secondary);
+}
+
+.source-arrow {
+    font-size: 1.5rem;
+    color: var(--text-muted);
+}
+
+/* ===== List Page ===== */
+.list-header {
+    margin-bottom: 20px;
+}
+
+.list-header h2 {
+    font-size: 1.1rem;
+    color: var(--text-secondary);
+    margin-bottom: 12px;
+}
+
+.search-box input {
+    width: 100%;
+    padding: 12px 16px;
+    border: 1px solid var(--border);
+    border-radius: 12px;
+    background: var(--bg-card);
+    color: var(--text-primary);
+    font-size: 1rem;
+    font-family: inherit;
+}
+
+.search-box input:focus {
+    outline: none;
+    border-color: var(--accent);
+}
+
+.search-box input::placeholder {
+    color: var(--text-muted);
+}
+
+/* Stories List */
+.stories-list {
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
+}
+
+.story-item {
+    display: flex;
+    align-items: center;
+    gap: 12px;
+    background: var(--bg-card);
+    border-radius: 12px;
+    padding: 16px;
+    text-decoration: none;
+    color: inherit;
+    transition: background 0.2s;
+}
+
+.story-item:hover {
+    background: var(--bg-secondary);
+}
+
+.story-number {
+    width: 32px;
+    height: 32px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background: var(--bg-primary);
+    border-radius: 50%;
+    font-size: 0.85rem;
+    color: var(--text-secondary);
+    flex-shrink: 0;
+}
+
+.story-info {
+    flex: 1;
+    min-width: 0;
+}
+
+.story-title {
+    font-size: 1rem;
+    font-weight: 600;
+    margin-bottom: 4px;
+    color: var(--text-primary);
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+
+.story-meta {
+    font-size: 0.8rem;
+    color: var(--text-secondary);
+}
+
+.story-meta .author {
+    color: var(--accent);
+}
+
+.story-arrow {
+    width: 32px;
+    height: 32px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background: var(--bg-primary);
+    border-radius: 50%;
+    font-size: 0.7rem;
+    color: var(--accent);
+    flex-shrink: 0;
+}
+
+/* ===== Player Page ===== */
+.player-page {
+    overflow: hidden;
+}
+
+/* Fixed Player Bar (80px) */
+.player-bar {
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    height: 80px;
+    background: var(--player-bg);
+    backdrop-filter: blur(20px);
+    -webkit-backdrop-filter: blur(20px);
+    border-bottom: 1px solid var(--border);
+    z-index: 1000;
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
+    padding: 0 16px;
+}
+
+.player-controls {
+    display: flex;
+    align-items: center;
+    gap: 12px;
+    flex: 1;
+}
+
+.player-info {
+    flex: 1;
+    min-width: 0;
+}
+
+.player-title {
+    font-size: 0.95rem;
+    font-weight: 600;
+    color: var(--text-primary);
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    margin-bottom: 2px;
+}
+
+.player-author {
+    font-size: 0.8rem;
+    color: var(--text-secondary);
+}
+
+.play-btn, .close-btn {
+    width: 44px;
+    height: 44px;
+    border-radius: 50%;
+    border: none;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    transition: transform 0.2s;
+}
+
+.play-btn {
+    background: var(--accent);
+    color: white;
+    font-size: 1.2rem;
+}
+
+.play-btn:hover {
+    transform: scale(1.05);
+    background: var(--accent-light);
+}
+
+.close-btn {
+    background: var(--bg-primary);
+    color: var(--text-secondary);
+    font-size: 1rem;
+}
+
+.close-btn:hover {
+    color: var(--text-primary);
+}
+
+/* Progress Bar */
+.progress-container {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    padding-top: 8px;
+}
+
+.time-current, .time-total {
+    font-size: 0.7rem;
+    color: var(--text-muted);
+    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
+    min-width: 35px;
+}
+
+.time-total {
+    text-align: right;
+}
+
+/* Speed Control Bar */
+.speed-control-bar {
+    position: fixed;
+    top: 80px;
+    left: 0;
+    right: 0;
+    height: 44px;
+    background: var(--player-bg);
+    backdrop-filter: blur(20px);
+    -webkit-backdrop-filter: blur(20px);
+    border-bottom: 1px solid var(--border);
+    z-index: 999;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    gap: 40px;
+    padding: 0 20px;
+}
+
+.speed-btn {
+    background: none;
+    border: none;
+    color: var(--text-secondary);
+    font-size: 0.9rem;
+    font-family: inherit;
+    cursor: pointer;
+    padding: 6px 16px;
+    border-radius: 16px;
+    transition: all 0.2s;
+    min-width: 60px;
+}
+
+.speed-btn:hover {
+    color: var(--text-primary);
+    background: var(--bg-primary);
+}
+
+.speed-btn.active {
+    color: white;
+    background: var(--accent);
+}
+
+/* Content Area with Speed Control */
+.content-area.player-with-speed {
+    margin-top: 124px; /* 80px player + 44px speed control */
+}
+
+.progress-bar {
+    flex: 1;
+    height: 4px;
+    background: var(--progress-bg);
+    border-radius: 2px;
+    cursor: pointer;
+    position: relative;
+}
+
+.progress-fill {
+    height: 100%;
+    background: var(--progress-fill);
+    border-radius: 2px;
+    width: 0%;
+    transition: width 0.1s linear;
+}
+
+/* Content Area */
+.content-area {
+    margin-top: 80px;
+    padding: 20px 16px 40px;
+    height: calc(100vh - 80px);
+    overflow-y: auto;
+    -webkit-overflow-scrolling: touch;
+}
+
+.content-area.player-with-speed {
+    margin-top: 124px; /* 80px player + 44px speed control */
+    height: calc(100vh - 124px);
+}
+
+.story-content {
+    max-width: 680px;
+    margin: 0 auto;
+}
+
+.content-header {
+    margin-bottom: 32px;
+    padding-bottom: 24px;
+    border-bottom: 1px solid var(--border);
+}
+
+.content-header h1 {
+    font-size: 1.6rem;
+    line-height: 1.3;
+    margin-bottom: 12px;
+    color: var(--text-primary);
+}
+
+.content-meta {
+    font-size: 0.9rem;
+    color: var(--text-secondary);
+}
+
+.content-meta .author {
+    color: var(--accent);
+    font-weight: 500;
+}
+
+.content-meta .year {
+    margin-left: 8px;
+    padding-left: 8px;
+    border-left: 1px solid var(--border);
+}
+
+/* Content Body */
+.content-body {
+    font-size: 1.1rem;
+    line-height: 1.8;
+    color: var(--text-primary);
+}
+
+.content-chunk {
+    margin-bottom: 24px;
+    transition: opacity 0.3s ease;
+}
+
+.content-chunk p {
+    margin-bottom: 1.2em;
+    text-align: justify;
+    hyphens: auto;
+}
+
+.content-chunk p:last-child {
+    margin-bottom: 0;
+}
+
+/* Loading State */
+.loading {
+    text-align: center;
+    padding: 40px;
+    color: var(--text-muted);
+}
+
+/* Content End */
+.content-end {
+    text-align: center;
+    padding: 48px 0;
+    color: var(--text-muted);
+    border-top: 1px solid var(--border);
+    margin-top: 48px;
+}
+
+.content-end p {
+    font-style: italic;
+    margin-bottom: 24px;
+}
+
+.back-to-list {
+    padding: 12px 32px;
+    background: var(--accent);
+    color: white;
+    border: none;
+    border-radius: 24px;
+    font-size: 0.95rem;
+    cursor: pointer;
+    transition: background 0.2s;
+}
+
+.back-to-list:hover {
+    background: var(--accent-light);
+}
+
+/* ===== Empty State ===== */
+.empty-state {
+    text-align: center;
+    padding: 60px 20px;
+    color: var(--text-muted);
+}
+
+.empty-state p {
+    font-size: 1.1rem;
+    margin-bottom: 8px;
+}
+
+.empty-subtitle {
+    font-size: 0.85rem !important;
+}
+
+/* ===== Footer ===== */
+.footer {
+    text-align: center;
+    padding: 20px;
+    color: var(--text-muted);
+    font-size: 0.8rem;
+    border-top: 1px solid var(--border);
+}
+
+/* ===== Responsive Adjustments ===== */
+@media (min-width: 768px) {
+    .main-content {
+        padding-top: 80px;
+    }
+    
+    .content-area {
+        padding: 32px 40px;
+    }
+    
+    .content-body {
+        font-size: 1.2rem;
+        line-height: 1.9;
+    }
+}
+
+@media (min-width: 1024px) {
+    .player-bar {
+        left: auto;
+        width: 380px;
+        right: 0;
+        top: 0;
+        bottom: 0;
+        height: auto;
+        border-left: 1px solid var(--border);
+        border-bottom: none;
+        flex-direction: column-reverse;
+        justify-content: flex-end;
+        padding: 24px;
+    }
+    
+    .player-controls {
+        flex-direction: column;
+        gap: 20px;
+    }
+    
+    .player-info {
+        text-align: center;
+    }
+    
+    .progress-container {
+        padding-top: 0;
+        padding-bottom: 20px;
+    }
+    
+    .content-area {
+        margin-top: 0;
+        margin-right: 380px;
+        height: 100vh;
+    }
+    
+    .content-area.player-with-speed {
+        margin-top: 0;
+        margin-right: 380px;
+        height: 100vh;
+    }
+    
+    .speed-control-bar {
+        left: auto;
+        right: 0;
+        top: auto;
+        bottom: 0;
+        width: 380px;
+        height: 60px;
+        border-top: 1px solid var(--border);
+        border-bottom: none;
+        border-left: 1px solid var(--border);
+    }
+}
+
+/* ===== Scrollbar Styling ===== */
+::-webkit-scrollbar {
+    width: 6px;
+}
+
+::-webkit-scrollbar-track {
+    background: transparent;
+}
+
+::-webkit-scrollbar-thumb {
+    background: var(--border);
+    border-radius: 3px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+    background: var(--text-muted);
+}
+
+/* ===== Selection ===== */
+::selection {
+    background: var(--accent-light);
+    color: white;
+}
+
+.dark-mode ::selection {
+    background: var(--accent);
+}

audiobook-player/static/js/app.js

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+/**
+ * Audiobook Player - App JavaScript
+ * Minimalist immersive reading experience
+ */
+
+// Theme Management
+function initTheme() {
+    const savedTheme = localStorage.getItem('theme') || 'light';
+    if (savedTheme === 'dark') {
+        document.body.classList.remove('light-mode');
+        document.body.classList.add('dark-mode');
+        updateThemeIcon(true);
+    }
+}
+
+function toggleTheme() {
+    const isDark = document.body.classList.contains('dark-mode');
+    
+    if (isDark) {
+        document.body.classList.remove('dark-mode');
+        document.body.classList.add('light-mode');
+        localStorage.setItem('theme', 'light');
+    } else {
+        document.body.classList.remove('light-mode');
+        document.body.classList.add('dark-mode');
+        localStorage.setItem('theme', 'dark');
+    }
+    
+    updateThemeIcon(!isDark);
+}
+
+function updateThemeIcon(isDark) {
+    const toggle = document.querySelector('.theme-toggle');
+    if (toggle) {
+        toggle.textContent = isDark ? '☀️' : '🌙';
+    }
+}
+
+// Navigation
+function goBack() {
+    window.history.back();
+}
+
+function closePlayer() {
+    // Override in player page
+    window.history.back();
+}
+
+// Save and Restore Reading Position
+function saveReadingPosition(storyId, scrollPosition) {
+    const positions = JSON.parse(localStorage.getItem('readingPositions') || '{}');
+    positions[storyId] = {
+        position: scrollPosition,
+        timestamp: Date.now()
+    };
+    localStorage.setItem('readingPositions', JSON.stringify(positions));
+}
+
+function getReadingPosition(storyId) {
+    const positions = JSON.parse(localStorage.getItem('readingPositions') || '{}');
+    return positions[storyId]?.position || 0;
+}
+
+// Smooth Scroll
+function scrollToPosition(position) {
+    window.scrollTo({
+        top: position,
+        behavior: 'smooth'
+    });
+}
+
+// Touch Gestures (for mobile)
+let touchStartX = 0;
+let touchEndX = 0;
+
+function initTouchGestures() {
+    document.addEventListener('touchstart', (e) => {
+        touchStartX = e.changedTouches[0].screenX;
+    }, { passive: true });
+    
+    document.addEventListener('touchend', (e) => {
+        touchEndX = e.changedTouches[0].screenX;
+        handleSwipe();
+    }, { passive: true });
+}
+
+function handleSwipe() {
+    const swipeThreshold = 100;
+    const diff = touchStartX - touchEndX;
+    
+    // Swipe right (go back)
+    if (diff < -swipeThreshold) {
+        // Only if we're not on the home page
+        if (window.location.pathname !== '/') {
+            goBack();
+        }
+    }
+}
+
+// Keyboard Shortcuts
+function initKeyboardShortcuts() {
+    document.addEventListener('keydown', (e) => {
+        // Space: Play/Pause (on player page)
+        if (e.code === 'Space' && document.getElementById('playBtn')) {
+            e.preventDefault();
+            togglePlay();
+        }
+        
+        // Escape: Go back
+        if (e.code === 'Escape') {
+            if (window.location.pathname !== '/') {
+                goBack();
+            }
+        }
+    });
+}
+
+// Audio Player Enhancements
+function initAudioPlayer() {
+    const audio = document.getElementById('audioPlayer');
+    if (!audio) return;
+    
+    // Handle errors
+    audio.addEventListener('error', (e) => {
+        console.error('Audio error:', e);
+        showNotification('播放出错，请重试');
+    });
+    
+    // Handle ended
+    audio.addEventListener('ended', () => {
+        isPlaying = false;
+        updatePlayButton();
+    });
+    
+    // Handle loading
+    audio.addEventListener('loadstart', () => {
+        showNotification('加载中...', 1000);
+    });
+}
+
+// Notification System
+function showNotification(message, duration = 3000) {
+    // Remove existing notification
+    const existing = document.querySelector('.notification');
+    if (existing) {
+        existing.remove();
+    }
+    
+    const notification = document.createElement('div');
+    notification.className = 'notification';
+    notification.textContent = message;
+    notification.style.cssText = `
+        position: fixed;
+        bottom: 20px;
+        left: 50%;
+        transform: translateX(-50%);
+        background: var(--bg-card);
+        color: var(--text-primary);
+        padding: 12px 24px;
+        border-radius: 24px;
+        box-shadow: 0 4px 16px var(--shadow);
+        z-index: 9999;
+        font-size: 0.9rem;
+        animation: slideUp 0.3s ease;
+    `;
+    
+    document.body.appendChild(notification);
+    
+    if (duration > 0) {
+        setTimeout(() => {
+            notification.style.animation = 'slideDown 0.3s ease';
+            setTimeout(() => notification.remove(), 300);
+        }, duration);
+    }
+    
+    return notification;
+}
+
+// Add animation styles
+const style = document.createElement('style');
+style.textContent = `
+    @keyframes slideUp {
+        from {
+            opacity: 0;
+            transform: translateX(-50%) translateY(20px);
+        }
+        to {
+            opacity: 1;
+            transform: translateX(-50%) translateY(0);
+        }
+    }
+    
+    @keyframes slideDown {
+        from {
+            opacity: 1;
+            transform: translateX(-50%) translateY(0);
+        }
+        to {
+            opacity: 0;
+            transform: translateX(-50%) translateY(20px);
+        }
+    }
+`;
+document.head.appendChild(style);
+
+// Prefetch next chunk (optimization)
+function prefetchNextChunk(currentIndex) {
+    // Implementation for preloading next audio chunk
+    // This would be implemented in player.html
+}
+
+// Performance: Debounce scroll events
+function debounce(func, wait) {
+    let timeout;
+    return function executedFunction(...args) {
+        const later = () => {
+            clearTimeout(timeout);
+            func(...args);
+        };
+        clearTimeout(timeout);
+        timeout = setTimeout(later, wait);
+    };
+}
+
+// Initialize on DOM ready
+document.addEventListener('DOMContentLoaded', () => {
+    initTheme();
+    initTouchGestures();
+    initKeyboardShortcuts();
+    initAudioPlayer();
+});
+
+// Handle page visibility change (pause when switching tabs)
+document.addEventListener('visibilitychange', () => {
+    const audio = document.getElementById('audioPlayer');
+    if (document.hidden && audio && !audio.paused) {
+        // Optional: pause when switching tabs
+        // audio.pause();
+        // isPlaying = false;
+        // updatePlayButton();
+    }
+});
+
+// Prevent zoom on double tap (mobile)
+let lastTouchEnd = 0;
+document.addEventListener('touchend', (event) => {
+    const now = Date.now();
+    if (now - lastTouchEnd <= 300) {
+        event.preventDefault();
+    }
+    lastTouchEnd = now;
+}, { passive: false });