/* OCR離線工具 - 現代化落地頁樣式 */

/* 重置與基礎設定 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS 變數定義 */
:root {
    /* 主色系 */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #8b5cf6;
    --secondary: #06b6d4;
    --accent: #f59e0b;
    
    /* 漸變色 */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-success: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    
    /* 文字顏色 */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-white: #ffffff;
    
    /* 背景顏色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f172a;
    --bg-card: #ffffff;
    
    /* 邊框與陰影 */
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --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);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* 圓角 */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    
    /* 間距 */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* 字體 */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    
    /* Z-index 層級 */
    --z-dropdown: 1000;
    --z-navbar: 1010;
    --z-modal: 1020;
    --z-toast: 1030;
}

/* 基礎樣式 */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* 浮動導航欄 */
.floating-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    z-index: var(--z-navbar);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.floating-nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 50%;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 100%;
}

/* 語言切換器 */
.language-switcher {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 0.875rem;
}

.lang-btn:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 140px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: var(--z-dropdown);
}

.lang-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: block;
    width: 100%;
    padding: var(--space-sm);
    border: none;
    background: none;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.2s ease;
    font-size: 0.875rem;
}

.lang-option:hover {
    background: var(--bg-secondary);
}

.lang-option:first-child {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.lang-option:last-child {
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Hero 區域 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: calc(70px + var(--space-xl)) 0 var(--space-2xl);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.1) 0%, 
        rgba(118, 75, 162, 0.1) 50%, 
        rgba(102, 126, 234, 0.05) 100%);
}

.floating-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0.1;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 10%;
    animation-delay: 5s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 50%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-30px) rotate(120deg); }
    66% { transform: translateY(20px) rotate(240deg); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-accent);
    color: var(--text-white);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-lg);
    animation: slideInUp 0.8s ease-out 0.2s both;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    animation: slideInUp 0.8s ease-out 0.4s both;
}

.title-line-1,
.title-line-2 {
    display: block;
    color: var(--text-primary);
}

.title-highlight {
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: var(--space-sm);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-xl);
    animation: slideInUp 0.8s ease-out 0.6s both;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    animation: slideInUp 0.8s ease-out 0.8s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: var(--space-xs);
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    animation: slideInUp 0.8s ease-out 1s both;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-xl);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.cta-button.primary {
    background: var(--gradient-primary);
    color: var(--text-white);
    box-shadow: var(--shadow-lg);
}

.cta-button.primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-2xl);
}

.cta-button.secondary {
    background: var(--bg-card);
    color: var(--primary);
    border: 2px solid var(--primary);
    box-shadow: var(--shadow-md);
}

.cta-button.secondary:hover {
    background: var(--primary);
    color: var(--text-white);
    transform: translateY(-2px);
}

.cta-button.large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1.125rem;
}

.trust-indicators {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
    animation: slideInUp 0.8s ease-out 1.2s both;
}

.trust-item {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Hero 視覺區域 */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: slideInUp 0.8s ease-out 0.6s both;
}

.app-showcase {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.app-window {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-window:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.window-header {
    background: var(--bg-secondary);
    padding: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
}

.window-controls {
    display: flex;
    gap: var(--space-xs);
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control.red { background: #ef4444; }
.control.yellow { background: #f59e0b; }
.control.green { background: #10b981; }

.window-title {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.window-content {
    padding: var(--space-md);
}

.app-screenshot {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.feature-tags {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.feature-tag {
    position: absolute;
    background: var(--gradient-accent);
    color: var(--text-white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    animation: pulse 2s ease-in-out infinite;
}

.tag-1 {
    top: 15%;
    right: -10%;
    animation-delay: 0s;
}

.tag-2 {
    top: 40%;
    left: -15%;
    animation-delay: 0.5s;
}

.tag-3 {
    bottom: 20%;
    right: -5%;
    animation-delay: 1s;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* 區段標題 */
.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 核心優勢區域 */
.advantages {
    padding: var(--space-3xl) 0;
    background: var(--bg-secondary);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.advantage-card {
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.advantage-card.privacy::before { background: var(--gradient-primary); }
.advantage-card.cost::before { background: var(--gradient-success); }
.advantage-card.speed::before { background: var(--gradient-accent); }

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-xl);
    background: var(--bg-secondary);
    color: var(--primary);
}

.advantage-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.advantage-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

.card-highlight {
    background: var(--bg-secondary);
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    font-weight: 600;
    color: var(--primary);
    font-size: 0.875rem;
}

.cost-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-xs);
}

.our-cost {
    color: #10b981;
    font-weight: 700;
}

.vs {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.ai-cost {
    color: #ef4444;
    font-weight: 700;
}

.online-cost {
    color: #ef4444;
    font-weight: 700;
}

/* 軟體演示區域 */
.demo-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-primary);
}

.demo-showcase {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.demo-tabs {
    display: flex;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.demo-tab {
    flex: 1;
    padding: var(--space-lg);
    border: none;
    background: none;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.demo-tab.active {
    color: var(--primary);
    background: var(--bg-card);
}

.demo-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.demo-tab:hover:not(.active) {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.05);
}

.demo-content {
    position: relative;
}

.demo-panel {
    display: none;
    padding: var(--space-2xl);
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.demo-panel.active {
    display: grid;
}

.demo-image {
    text-align: center;
}

.demo-screenshot {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

.demo-screenshot:hover {
    transform: scale(1.02);
}

.demo-description h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.demo-description ul {
    list-style: none;
    space-y: var(--space-md);
}

.demo-description li {
    padding: var(--space-sm) 0;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

/* 功能特色 */
.features {
    padding: var(--space-3xl) 0;
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.feature-item {
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
    display: block;
}

.feature-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 價格方案 */
.pricing {
    padding: var(--space-3xl) 0;
    background: var(--bg-primary);
}

.pricing-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.pricing-card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius-2xl);
    padding: var(--space-xl);
    text-align: center;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.featured-card {
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--text-white);
    padding: var(--space-xs) var(--space-lg);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.price-display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.amount {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-period {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    font-size: 0.875rem;
}

.features-list {
    text-align: left;
    margin-bottom: var(--space-xl);
    space-y: var(--space-sm);
}

.feature-included,
.feature-limited {
    padding: var(--space-xs) 0;
    font-size: 0.925rem;
    line-height: 1.5;
}

.feature-included {
    color: var(--text-secondary);
}

.feature-limited {
    color: var(--accent);
}

.pricing-button {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-xl);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.trial-button {
    background: var(--bg-secondary);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.trial-button:hover {
    background: var(--primary);
    color: var(--text-white);
}

.featured-button {
    background: var(--gradient-primary);
    color: var(--text-white);
    box-shadow: var(--shadow-lg);
}

.featured-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.guarantee {
    margin-top: var(--space-md);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.value-proposition {
    text-align: center;
}

.value-card {
    background: var(--gradient-accent);
    color: var(--text-white);
    padding: var(--space-xl);
    border-radius: var(--radius-2xl);
    max-width: 600px;
    margin: 0 auto;
}

.value-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

/* FAQ 區域 */
.faq {
    padding: var(--space-3xl) 0;
    background: var(--bg-secondary);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.faq-question {
    padding: var(--space-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-arrow {
    transition: transform 0.3s ease;
    color: var(--primary);
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--text-secondary);
    line-height: 1.6;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

/* 最終 CTA */
.final-cta {
    padding: var(--space-3xl) 0;
    background: var(--gradient-primary);
    color: var(--text-white);
    text-align: center;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--space-md);
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: var(--space-xl);
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.final-cta .cta-button.primary {
    background: var(--text-white);
    color: var(--primary);
}

.final-cta .cta-button.secondary {
    background: transparent;
    color: var(--text-white);
    border: 2px solid var(--text-white);
}

.final-guarantees {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0.9;
}

.guarantee-item {
    font-size: 0.875rem;
    font-weight: 500;
}

/* 頁腳 */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.footer-logo {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
}

.footer-section h4,
.footer-section h5 {
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--space-xs);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-section a:hover {
    color: var(--text-white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

/* 動畫定義 */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 響應式設計 */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .demo-panel {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .featured-card {
        transform: none;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        gap: var(--space-md);
    }
    
    .nav-link {
        display: none;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }
    
    .trust-indicators {
        flex-direction: column;
        align-items: center;
        gap: var(--space-sm);
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-container {
        grid-template-columns: 1fr;
    }
    
    .demo-tabs {
        flex-direction: column;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .final-guarantees {
        flex-direction: column;
        align-items: center;
        gap: var(--space-sm);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    .hero {
        padding: calc(70px + var(--space-lg)) 0 var(--space-lg);
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .app-window {
        transform: none;
    }
    
    .feature-tags {
        display: none;
    }
}

/* 滾動條樣式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* 選取樣式 */
::selection {
    background: var(--primary);
    color: var(--text-white);
}

/* 焦點樣式 */
:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* 載入動畫 */
.loading {
    opacity: 0;
    animation: fadeIn 0.5s ease-in-out forwards;
}