/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 图片通用样式 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

:root {
    /* Harmonious Blue Monochromatic Palette - Swiss Modernism Style */
    /* Single color family for cohesive, professional look */
    --primary-color: #2563EB; /* Blue-600 - Main brand color */
    --primary-dark: #1D4ED8; /* Blue-700 - Hover & active states */
    --primary-darker: #1E40AF; /* Blue-800 - Deep accents */
    --primary-light: #3B82F6; /* Blue-500 - Secondary elements */
    --primary-lighter: #60A5FA; /* Blue-400 - Light accents */
    --primary-lightest: #DBEAFE; /* Blue-100 - Subtle backgrounds */
    
    /* CTA uses same blue family - deeper shade for emphasis */
    --cta-color: #1D4ED8; /* Blue-700 - CTA buttons */
    --cta-hover: #1E40AF; /* Blue-800 - CTA hover */
    
    /* Success/Accent - Subtle green that complements blue */
    --success-color: #059669; /* Emerald-600 - Success states */
    --success-light: #10B981; /* Emerald-500 - Light success */
    
    /* Text colors - High contrast for readability */
    --text-primary: #0F172A; /* Slate-900 - Main text (WCAG AAA) */
    --text-secondary: #475569; /* Slate-600 - Secondary text */
    --text-muted: #64748B; /* Slate-500 - Muted text */
    --text-light: #94A3B8; /* Slate-400 - Very light text */
    
    /* Background colors - Clean and minimal */
    --bg-primary: #FFFFFF; /* Pure white */
    --bg-secondary: #F8FAFC; /* Slate-50 - Soft background */
    --bg-tertiary: #F1F5F9; /* Slate-100 - Subtle sections */
    --bg-accent: #EFF6FF; /* Blue-50 - Blue tinted background */
    --bg-dark: #0F172A; /* Slate-900 - Dark sections */
    
    /* Border colors - Visible and subtle */
    --border-color: #E2E8F0; /* Slate-200 - Main borders */
    --border-light: #F1F5F9; /* Slate-100 - Subtle borders */
    --border-blue: #BFDBFE; /* Blue-200 - Blue tinted borders */
    
    /* Soft UI Evolution Shadows - Improved contrast, clearer than neumorphism */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.08), 0 1px 2px 0 rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Gradients - Harmonious Blue Monochromatic */
    --gradient-primary: linear-gradient(135deg, #2563EB 0%, #3B82F6 100%); /* Blue gradient */
    --gradient-soft: linear-gradient(135deg, #3B82F6 0%, #60A5FA 100%); /* Soft blue gradient */
    --gradient-hero: linear-gradient(135deg, #1E40AF 0%, #2563EB 50%, #3B82F6 100%); /* Hero blue gradient */
    --gradient-subtle: linear-gradient(135deg, #DBEAFE 0%, #EFF6FF 100%); /* Subtle background gradient */
    
    /* Transition timing for modern feel (200-300ms) */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

html {
    scroll-behavior: smooth;
}

body {
    /* E-commerce Clean Font Pairing: Nunito Sans for body */
    font-family: 'Nunito Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Rubik for headings */
h1, h2, h3, h4, h5, h6,
.hero-title, .section-title, .product-name, .feature-item h3,
.terminal-card h3, .case-content h3, .advantage-content h3 {
    font-family: 'Rubik', sans-serif;
    font-weight: 600;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 - Floating navbar with spacing (Professional UI rule) */
.navbar {
    position: fixed;
    top: 1rem; /* Floating navbar spacing */
    left: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md); /* Improved shadow for floating effect */
    border-radius: 1rem; /* Rounded corners for floating effect */
    z-index: 1000;
    transition: all var(--transition-base);
    border: 1px solid var(--border-color); /* Visible border */
    max-width: 1400px;
    margin: 0 auto;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color); /* Blue-600 for brand */
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color var(--transition-base);
    position: relative;
    cursor: pointer; /* Professional UI rule: cursor-pointer on clickable */
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 导航操作区域 */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* 语言选择器 */
.language-selector {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--border-color); /* Visible border */
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.lang-btn:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.lang-btn svg {
    transition: transform 0.3s ease;
}

.lang-btn.active svg {
    transform: rotate(180deg);
}

.lang-flag {
    font-size: 1.125rem;
}

.lang-code {
    font-weight: 500;
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: white;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    overflow: hidden;
}

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

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-fast); /* 150ms for quick feedback */
    border-bottom: 1px solid var(--border-color);
    cursor: pointer; /* Professional UI rule */
}

.lang-option:last-child {
    border-bottom: none;
}

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

.lang-option.active {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    font-weight: 600;
}

.lang-option .lang-flag {
    font-size: 1.25rem;
}

/* 英雄区 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 120px; /* Account for floating navbar height + spacing */
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero); /* Harmonious blue gradient */
    opacity: 0.06; /* Very subtle for clean look */
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.hero-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-content {
    text-align: left;
    z-index: 1;
}

.hero-image {
    position: relative;
    z-index: 1;
}

.hero-img {
    max-width: 100%;
    max-height: 600px;
    height: auto;
    border-radius: 1.5rem;
    box-shadow: var(--shadow-xl);
    object-fit: contain;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    color: var(--text-primary);
}

.highlight {
    color: var(--primary-color); /* Blue-600 for emphasis */
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base); /* 200ms for modern feel */
    border: 2px solid transparent;
    cursor: pointer; /* Professional UI rule */
    font-family: 'Rubik', sans-serif; /* Use heading font for buttons */
}

.btn-primary {
    background: var(--cta-color); /* Deep blue for CTA */
    color: white;
    box-shadow: var(--shadow-md);
    border-color: var(--cta-color);
}

.btn-primary:hover {
    background: var(--cta-hover); /* Darker blue on hover */
    border-color: var(--cta-hover);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    /* No layout shift - only transform and shadow */
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: white;
    color: var(--primary-color); /* Trust blue */
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-dark);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color); /* Trust blue */
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-dark);
}

.btn-block {
    width: 100%;
    text-align: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-secondary);
    border-radius: 12px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--text-secondary);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@keyframes scroll {
    0% {
        opacity: 1;
        top: 8px;
    }
    100% {
        opacity: 0;
        top: 24px;
    }
}

/* 区块标题 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* 产品区域 */
.products {
    padding: 6rem 0;
    background: var(--bg-primary); /* White background for cleaner look */
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.product-card {
    background: white;
    border-radius: 1rem;
    padding: 0;
    box-shadow: var(--shadow-md); /* Soft UI Evolution shadow */
    transition: all var(--transition-base); /* 200ms */
    position: relative;
    overflow: hidden;
    cursor: pointer; /* Professional UI rule */
    border: 1px solid var(--border-color); /* Visible border */
    display: flex;
    flex-direction: column;
}

.product-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-img {
    transform: scale(1.05);
}

.product-card > .product-icon,
.product-card > .product-name,
.product-card > .product-description,
.product-card > .product-features,
.product-card > .btn {
    padding-left: 2.5rem;
    padding-right: 2.5rem;
}

.product-card > .product-icon {
    margin-top: 1.5rem;
    padding-top: 0;
}

.product-card > .product-name {
    padding-top: 1.5rem;
}

.product-card > .btn {
    margin: 0 2.5rem 2.5rem;
    padding-left: 2rem;
    padding-right: 2rem;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-color); /* Blue-600 accent */
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.product-card:hover {
    transform: translateY(-4px); /* Reduced to prevent layout shift */
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
    /* Stable hover state - no scale transform */
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-card.featured {
    border: 2px solid var(--primary-color); /* Blue-600 border */
    box-shadow: var(--shadow-lg); /* Enhanced shadow for featured */
    background: var(--bg-accent); /* Blue-500 tinted background */
}

.badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--primary-darker); /* Deep blue badge */
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: var(--shadow-md);
}

.product-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-lightest); /* Blue-100 background */
    border: 1px solid var(--border-blue); /* Blue-200 border */
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.product-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary-color); /* Blue-600 */
}

.product-name {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.product-tag {
    width: fit-content;
    margin-left: 32px;
    display: inline-block;
    background: var(--primary-lightest); /* Blue-100 background */
    color: var(--primary-darker); /* Blue-800 text */
    padding: 0.25rem 0.25rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 1px solid var(--border-blue); /* Blue-200 border */
}

.product-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.feature-tag {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: var(--primary-lightest);
    color: var(--primary-color);
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--primary-light);
    transition: all var(--transition-base);
}

.feature-tag:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    color: var(--primary-darker);
    transform: translateY(-2px);
}

/* 价格表格中的特性标签 */
.feature-label {
    font-weight: 600;
    color: var(--text-primary);
}


.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin: 0.5rem 0 0 0;
    justify-content: center;
    width: 100%;
    visibility: visible !important;
    opacity: 1 !important;
}

.feature-tags span {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background: #e0f2fe;
    color: #0369a1;
    border-radius: 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid #bae6fd;
    box-sizing: border-box;
    visibility: visible !important;
    opacity: 1 !important;
}

/* 表格单元格中的特性标签 */
td .feature-tags {
    margin-top: 0.5rem;
    justify-content: center;
    width: 100%;
    visibility: visible !important;
    opacity: 1 !important;
}

td .feature-tags span {
    font-size: 0.7rem;
    padding: 0.2rem 0.4rem;
    box-sizing: border-box;
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
    visibility: visible !important;
    opacity: 1 !important;
}

/* 功能区域 */
.features {
    padding: 6rem 0;
    background: var(--bg-secondary); /* Slate-50 for subtle section separation */
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 1rem;
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    cursor: pointer; /* Professional UI rule */
}

.feature-item:hover {
    background: white;
    transform: translateY(-4px); /* Consistent with terminal-card */
    box-shadow: var(--shadow-lg); /* Add shadow on hover for feedback */
    border-color: var(--primary-color); /* Change border to primary color on hover */
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    background: var(--primary-color); /* Trust blue solid */
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.feature-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 终端区域 */
.terminals {
    padding: 6rem 0;
    background: var(--bg-primary); /* White background */
}

.terminals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.terminal-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid var(--border-color); /* Visible border */
    cursor: pointer; /* Professional UI rule */
}

.terminal-card:hover {
    transform: translateY(-4px); /* Reduced movement */
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
    /* Clear visual feedback without layout shift */
}

.terminal-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--primary-lightest); /* Blue-100 background */
    border: 1px solid var(--border-blue); /* Blue-200 border */
    border-radius: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.terminal-card:hover .terminal-icon {
    background: var(--primary-color); /* Blue-600 solid on hover */
    transform: scale(1.05); /* Reduced scale to prevent layout shift */
    border-color: var(--primary-color);
}

.terminal-icon svg {
    width: 40px;
    height: 40px;
    color: var(--primary-color);
    transition: color var(--transition-base);
}

.terminal-card:hover .terminal-icon svg {
    color: white;
}

.terminal-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.terminal-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 优势区域 */
.advantages {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.advantages-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.advantages-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.advantage-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.advantage-item {
    display: flex;
    gap: 1.5rem;
}

.advantage-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color); /* Trust blue for numbers */
    line-height: 1;
    flex-shrink: 0;
}

.advantage-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.advantage-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.advantages-visual {
    position: relative;
    height: 400px;
}

.visual-card {
    width: 100%;
    height: 100%;
    border-radius: 1.5rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    background: var(--bg-secondary);
}

.visual-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 1.5rem;
}

/* 案例区域 */
.cases {
    padding: 6rem 0;
    background: var(--bg-secondary); /* Slate-50 for subtle section separation */
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.case-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid var(--border-color); /* Visible border */
    display: flex;
    flex-direction: column;
    cursor: pointer; /* Professional UI rule */
}

.case-card:hover {
    transform: translateY(-4px); /* Reduced movement */
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
    /* Clear hover feedback */
}

.case-image {
    width: 100%;
    height: 200px;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.case-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.case-card:hover .case-img {
    transform: scale(1.05);
}

.case-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-tag {
    display: inline-block;
    background: var(--primary-color); /* Blue-600 solid */
    color: white;
    padding: 0.375rem 0.875rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    align-self: flex-start;
    box-shadow: var(--shadow-sm);
}

.case-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.case-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    flex: 1;
}

.case-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.case-feature-tag {
    display: inline-block;
    background: var(--primary-lightest); /* Blue-100 background */
    color: var(--primary-darker); /* Blue-800 text */
    padding: 0.25rem 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--border-blue); /* Blue-200 border */
}

.case-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
    margin-top: auto;
    cursor: pointer; /* Professional UI rule */
}

.case-link:hover {
    gap: 0.75rem;
    color: var(--primary-dark);
}

.case-link svg {
    transition: transform 0.3s ease;
}

.case-link:hover svg {
    transform: translateX(4px);
}

/* 联系区域 */
.contact {
    padding: 6rem 0;
    background: var(--bg-primary); /* 二维码展示样式 */
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-item {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: 1.25rem;
    transition: all var(--transition-base);
    cursor: pointer;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.info-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.info-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.info-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.info-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.contact-note {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--bg-accent);
    border-radius: 0.75rem;
    text-align: center;
}

.contact-note p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.9375rem;
}

.info-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.info-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* 二维码展示样式 */
.qr-code-wrapper {
    background: var(--bg-primary);
    padding: 2.5rem;
    border-radius: 1.25rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.qr-code-wrapper h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.qr-code-container {
    display: flex;
    flex-direction: row;
    gap: 2rem;
    width: 100%;
    max-width: 600px;
    flex-wrap: wrap;
    justify-content: center;
}

.qr-code-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 1rem;
    transition: all var(--transition-base);
}

.qr-code-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.qr-code-placeholder {
    width: 140px;
    height: 140px;
    background: white;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--border-color);
}

.qr-code-placeholder svg {
    width: 100%;
    height: 100%;
    border-radius: 0.5rem;
}

.qr-code-label {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.contact-note {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--bg-accent);
    border-radius: 0.75rem;
    text-align: center;
}

.contact-note p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.9375rem;
}

.info-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.info-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}



/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Reduced motion support for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (max-width: 768px) {
    .navbar {
        top: 0.5rem;
        left: 0.5rem;
        right: 0.5rem;
        border-radius: 0.75rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px; /* Account for floating navbar */
        left: -100%;
        flex-direction: column;
        background: white;
        width: calc(100% - 1rem);
        margin: 0 0.5rem;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        border-radius: 1rem;
        transition: left var(--transition-base);
        border: 1px solid var(--border-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-actions {
        order: -1;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding-top: 100px; /* Reduced padding for mobile */
    }
    
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .terminals-grid {
        grid-template-columns: 1fr;
    }

    .cases-grid {
        grid-template-columns: 1fr;
    }

    .advantages-content {
        grid-template-columns: 1fr;
    }

    .advantages-visual {
        height: 300px;
    }

    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .qr-code-container {
        flex-direction: column;
        max-width: 320px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .container {
        padding: 0 15px;
    }

    .product-card > .product-icon,
    .product-card > .product-name,
    .product-card > .product-description,
    .product-card > .product-features,
    .product-card > .btn {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    .product-card > .btn {
        margin: 0 1.5rem 1.5rem;
    }

    .product-image {
        height: 180px;
    }

    .contact-form-wrapper,
    .terminal-card,
    .case-content {
        padding: 1.5rem;
    }

    .case-image {
        height: 150px;
    }

    .advantages-content {
        grid-template-columns: 1fr;
    }

    .advantages-visual {
        height: 300px;
        order: -1;
    }
}

/* 价格方案 */
.pricing {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

/* 独立使用的优惠广告栏 */
.discount-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 1rem;
    margin-bottom: 2rem;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
    position: relative;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
    overflow: hidden;
}

.banner-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    animation: float 6s ease-in-out infinite;
}

.circle-1 {
    width: 80px;
    height: 80px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.circle-2 {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.circle-3 {
    width: 60px;
    height: 60px;
    bottom: 20%;
    left: 50%;
    animation-delay: 4s;
}

.star {
    position: absolute;
    color: #ffd700;
    font-size: 24px;
    animation: twinkle 3s ease-in-out infinite;
}

.star-1 {
    top: 20%;
    right: 20%;
    animation-delay: 0s;
}

.star-2 {
    top: 70%;
    left: 25%;
    animation-delay: 1.5s;
}

.star-3 {
    bottom: 30%;
    right: 30%;
    animation-delay: 3s;
}

.banner-content {
    position: relative;
    padding: 2rem;
    text-align: center;
}

.banner-top {
    margin-bottom: 1rem;
}

.banner-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: slideDown 0.6s ease-out;
}

.banner-main h2.banner-title {
    font-size: 3rem;
    font-weight: 800;
    margin: 1rem 0;
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
    animation: scaleIn 0.8s ease-out;
}

.banner-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    opacity: 0.9;
    animation: fadeIn 1s ease-out 0.3s both;
}

.banner-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.banner-countdown {
    font-size: 1rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.banner-countdown #countdown-timer {
    color: #ffd700;
    font-weight: 700;
    font-size: 1.2rem;
}

.banner-urgency {
    font-size: 0.875rem;
    font-weight: 600;
    color: #ffd700;
    animation: blink 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

@keyframes twinkle {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 0.9;
    }
}

@keyframes blink {
    0%, 50%, 100% {
        opacity: 1;
    }
    25%, 75% {
        opacity: 0.6;
    }
}

/* 价格计算器 */
.price-calculator {
    margin-top: 3rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    background: var(--bg-primary);
    border-radius: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.calculator-content {
    display: flex;
    flex-direction: column;
}

.calculator-header {
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: visible;
    min-height: 100px;
    display: flex;
    align-items: center;
}

.calculator-discount {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    position: relative;
    gap: 2rem;
}

.calculator-title-section {
    flex: 1;
}

.calculator-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin: 0;
}

.diagonal-discount-tag {
    position: relative;
    transform: rotate(-5deg);
    display: inline-block;
    margin-left: 1rem;
    min-width: 120px;
    text-align: center;
}

.diagonal-discount-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
    z-index: -1;
}

.discount-stamp {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #764ba2;
    margin-bottom: 5px;
}

.discount-percentage {
    font-size: 1.75rem;
    font-weight: 800;
    color: #764ba2;
}

.discount-right-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.discount-urgency {
    font-size: 0.875rem;
    font-weight: 600;
    color: #ffd700;
    opacity: 0.9;
}

.calculator-body {
    padding: 2rem;
    display: flex;
    gap: 2rem;
    min-height: 400px;
    height: auto;
}

.calculator-selections {
    flex: 1;
    overflow-y: auto;
}

.calculator-summary {
    width: 300px;
    flex-shrink: 0;
}

.calculator-section {
    margin-bottom: 2rem;
}

.calculator-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.option-group {
    display: flex;
    flex-direction: row;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.option-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
    font-size: 0.875rem;
    white-space: nowrap;
    background: var(--bg-primary);
}

.option-group label:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.option-group input[type="radio"]:checked + span,
.option-group input[type="checkbox"]:checked + span {
    font-weight: 600;
    color: var(--primary-color);
}

.option-group input[type="radio"]:checked + span {
    font-weight: 700;
}

.option-group input[type="checkbox"],
.option-group input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.option-group input[type="checkbox"]:disabled + span,
.option-group input[type="radio"]:disabled + span {
    color: var(--text-muted);
    cursor: not-allowed;
}

.calculator-result {
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    height: fit-content;
}

.calculator-result h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.result-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-light);
}

.result-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.result-item span:first-child {
    color: var(--text-secondary);
    font-weight: 500;
}

.result-item span:last-child {
    font-weight: 600;
    color: var(--text-primary);
}

.result-total {
    display: flex;
    justify-content: space-between;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px solid var(--primary-light);
}

.result-total span:first-child {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.125rem;
}

.result-total span:last-child {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.calculator-actions {
    margin-top: 1.5rem;
}

.calculator-actions .btn {
    width: 100%;
}

.pricing-table-section {
    margin-top: 4rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.pricing-table-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 1rem;
}

.pricing-table-description {
    font-size: 1rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
}

.pricing-table-wrapper {
    overflow-x: auto;
    background: var(--bg-primary);
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.pricing-table {
    width: 100%;
    border-collapse: collapse;
}

.pricing-table th,
.pricing-table td {
    padding: 1.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
    vertical-align: top;
    position: relative;
}

.pricing-table thead {
    background: var(--primary-color);
    color: white;
}

.pricing-table th {
    background: var(--primary-color);
    font-weight: 700;
    color: white;
    white-space: nowrap;
    padding: 1.75rem 1.5rem;
    border: 1px solid var(--primary-dark);
}

.pricing-table td {
    color: var(--text-secondary);
}

.pricing-table tr.table-category {
    background: var(--bg-accent);
    border-top: none;
    border-bottom: none;
}

.pricing-table tr.table-category td {
    font-weight: 700;
    color: var(--primary-dark);
    text-align: center;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.pricing-table tr:last-child td {
    border-bottom: 1px solid var(--border-color);
}

/* 第一行td内容上下居中 */
.pricing-table tbody tr:first-child td[rowspan] {
    vertical-align: middle;
    text-align: center;
}



.pricing-cta {
    margin-top: 6rem;
    text-align: center;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding: 2.5rem;
    background: var(--bg-primary);
    border-radius: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.cta-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.cta-note {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 1rem;
    line-height: 1.6;
}

.cta-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-base);
}

.cta-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* 价格计算器弹窗 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5vh auto;
    padding: 1.5rem;
    border-radius: 1rem;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-base);
}

.close-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-body {
    flex: 1;
    overflow: auto;
    padding: 1.5rem 0;
}

.calculator-content {
    display: flex;
    min-height: 500px;
    gap: 1.5rem;
}

.calculator-selections {
    flex: 1;
    overflow-y: auto;
    padding-right: 1rem;
    min-height: 400px;
    max-height: none;
}

.calculator-summary {
    width: 300px;
    flex-shrink: 0;
    overflow-y: auto;
    max-height: 100%;
}

.calculator-section {
    margin-bottom: 1.5rem;
}

.calculator-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.option-group {
    display: flex;
    flex-direction: row;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: nowrap;
}

.option-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.375rem 0.75rem;
    border-radius: 1rem;
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
    font-size: 0.875rem;
    white-space: nowrap;
    background: var(--bg-primary);
}

.option-group label:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.option-group input[type="radio"]:checked + span,
.option-group input[type="checkbox"]:checked + span {
    font-weight: 600;
    color: var(--primary-color);
}

.option-group input[type="radio"]:checked + span {
    font-weight: 700;
}

.option-group input[type="checkbox"],
.option-group input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.option-group input[type="checkbox"]:disabled + span,
.option-group input[type="radio"]:disabled + span {
    color: var(--text-muted);
    cursor: not-allowed;
}

.calculator-result {
    padding: 1.25rem;
    background: var(--bg-secondary);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
}

.calculator-result h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.result-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-light);
}

.result-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.result-item span:first-child {
    color: var(--text-secondary);
}

.result-item span:last-child {
    font-weight: 600;
    color: var(--text-primary);
}

.result-total {
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 2px solid var(--primary-light);
}

.result-total span:first-child {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.125rem;
}

.result-total span:last-child {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.25rem;
}

.calculator-actions {
    margin-top: 1rem;
}

.calculator-actions .btn {
    width: 100%;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* 滚动条样式 */
.calculator-selections::-webkit-scrollbar,
.calculator-summary::-webkit-scrollbar {
    width: 6px;
}

.calculator-selections::-webkit-scrollbar-track,
.calculator-summary::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 3px;
}

.calculator-selections::-webkit-scrollbar-thumb,
.calculator-summary::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.calculator-selections::-webkit-scrollbar-thumb:hover,
.calculator-summary::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* 响应式价格方案 */
@media (max-width: 768px) {
    .price-calculator {
        margin-top: 2rem;
    }
    
    .calculator-body {
        flex-direction: column;
        padding: 1.5rem;
    }
    
    .calculator-selections {
        max-height: 400px;
    }
    
    .calculator-summary {
        width: 100%;
        margin-top: 1.5rem;
    }
    
    .pricing-table th,
    .pricing-table td {
        padding: 1rem;
    }
    
    .pricing-table tr.table-category td {
        padding-left: 1rem;
    }
    
    .pricing-cta {
        padding: 2rem;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 1.5rem;
        flex-direction: column;
        max-height: 90vh;
    }
    
    .modal-body {
        padding: 1rem 0;
    }
    
    .calculator-content {
        flex-direction: column;
        height: auto;
    }
    
    .calculator-selections {
        overflow-y: auto;
        padding-right: 0;
        height: auto;
    }
    
    .calculator-summary {
        width: 100%;
        margin-top: 1.5rem;
        height: auto;
        overflow-y: auto;
    }
}

@media (max-width: 480px) {
    .pricing-table th,
    .pricing-table td {
        padding: 0.75rem;
        font-size: 0.875rem;
    }
    
    .pricing-cta {
        padding: 1.5rem;
    }
    
    .cta-title {
        font-size: 1.5rem;
    }
    
    .modal-content {
        width: 98%;
        margin: 15% auto;
        padding: 1.25rem;
    }
    
    .modal-header h3 {
        font-size: 1.25rem;
    }
}
/* 产品特色 */
.features-highlights {
    background: var(--bg-primary);
}

/* 特色通栏样式 */
.feature-strip {
    height: 400px; /* 固定高度 */
    margin-bottom: 2rem;
}

.feature-strip-content {
    display: flex;
    align-items: center;
    height: 100%;
}

.feature-strip-image {
    width: 500px; /* 固定宽度 */
    height: 300px; /* 固定高度 */
    flex-shrink: 0;
}

.feature-strip-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
}

.feature-strip-text {
    flex: 1;
    padding: 0 2rem;
}

/* 调整偶数通栏的布局 */
.feature-strip.even .feature-strip-content {
    flex-direction: row-reverse;
}

/* 响应式样式 */
@media (max-width: 768px) {
    .feature-strip {
        height: auto;
        min-height: 400px;
    }
    
    .feature-strip-content {
        flex-direction: column !important;
        text-align: center;
        padding: 1.5rem 0;
    }
    
    .feature-strip-image {
        width: 100%;
        max-width: 400px;
        height: 250px;
        margin-bottom: 1.5rem;
    }
    
    .feature-strip-text {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .feature-strip-image {
        height: 200px;
    }
}

.features-highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.highlight-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.highlight-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.15);
}

.highlight-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    background: var(--primary-lightest);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.highlight-icon svg {
    width: 32px;
    height: 32px;
}

.highlight-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

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

/* 特色功能 */
.special-features {
    background: var(--bg-secondary);
}

.special-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.special-feature-card {
    background: var(--bg-primary);
    border-radius: 1.5rem;
    padding: 2.5rem;
    display: flex;
    gap: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.special-feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.15);
}

.feature-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-lighter);
    line-height: 1;
    min-width: 80px;
    display: flex;
    align-items: flex-start;
}

.feature-content {
    flex: 1;
}

.feature-content .feature-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    color: white;
}

.feature-content .feature-icon svg {
    width: 24px;
    height: 24px;
}

.special-feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.special-feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 响应式 */
@media (max-width: 768px) {
    .features-highlights-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .special-features-grid {
        grid-template-columns: 1fr;
    }
    
    .special-feature-card {
        flex-direction: column;
        gap: 1rem;
        padding: 2rem;
    }
    
    .feature-number {
        font-size: 2.5rem;
        min-width: auto;
    }
}

/* ========== Hero Enhancements ========== */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-lightest);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease-out;
}

.badge-icon {
    font-size: 1.25rem;
}

.hero-title .title-line {
    display: block;
    font-weight: 700;
    line-height: 1.2;
}

.hero-title .title-line:first-child {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-title .title-line.highlight {
    font-size: 4rem;
    color: var(--primary-color);
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.hero-image-wrapper {
    position: relative;
    animation: fadeInRight 0.8s ease-out 0.3s both;
}

.hero-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(37, 99, 235, 0.05) 100%);
    border-radius: 1.5rem;
}

.hero-img {
    border-radius: 1.5rem;
    position: relative;
    z-index: 1;
}

.hero-image-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.floating-card {
    position: absolute;
    background: white;
    padding: 0.75rem 1.25rem;
    border-radius: 1rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    z-index: 2;
    animation: float 3s ease-in-out infinite;
}

.floating-card .card-icon {
    font-size: 1.5rem;
}

.card-1 {
    top: 10%;
    left: -20px;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: -20px;
    animation-delay: 0.5s;
}

.card-3 {
    bottom: 10%;
    left: 10%;
    animation-delay: 1s;
}

/* Hero Stats Enhancement */
.hero-stats {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-top: 3rem;
    padding: 1.5rem 2rem;
    background: var(--bg-primary);
    border-radius: 1rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    animation: fadeInUp 0.6s ease-out 0.5s both;
}

.stat-item {
    flex: 1;
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* ========== Value Proposition Section ========== */
.value-proposition {
    padding: 4rem 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.value-item {
    text-align: center;
    padding: 1.5rem;
    border-radius: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.value-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.12);
}

.value-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    background: var(--primary-lightest);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.value-icon svg {
    width: 32px;
    height: 32px;
}

.value-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.value-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ========== Section Badge ========== */
.section-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--primary-lightest);
    color: var(--primary-color);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

/* ========== CTA Section ========== */
.cta-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-darker) 100%);
    position: relative;
    overflow: hidden;
}

.cta-wrapper {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.cta-content {
    padding: 3rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.cta-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.cta-section .btn-primary {
    background: white;
    color: var(--primary-color);
    border: none;
}

.cta-section .btn-primary:hover {
    background: var(--bg-secondary);
    color: var(--primary-darker);
}

.cta-section .btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.6);
}

.cta-section .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

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

.decoration-circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
}

.circle-1 {
    width: 400px;
    height: 400px;
    top: -200px;
    right: -100px;
}

.circle-2 {
    width: 300px;
    height: 300px;
    bottom: -150px;
    left: -100px;
}

.circle-3 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 10%;
    transform: translateY(-50%);
}

/* ========== Animations ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ========== Responsive Enhancements ========== */
@media (max-width: 1024px) {
    .hero-title .title-line:first-child {
        font-size: 2.5rem;
    }
    
    .hero-title .title-line.highlight {
        font-size: 3rem;
    }
    
    .value-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .hero-wrapper {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .stat-divider {
        width: 100%;
        height: 1px;
    }
    
    .floating-card {
        display: none;
    }
    
    .hero-image {
        margin-top: 2rem;
    }
    
    .value-grid {
        grid-template-columns: 1fr;
    }
    
    .value-item {
        padding: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .cta-content {
        padding: 2rem 1.5rem;
    }
    
    .cta-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .hero-title .title-line:first-child {
        font-size: 2rem;
    }
    
    .hero-title .title-line.highlight {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-stats {
        padding: 1rem;
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .cta-section {
        padding: 4rem 0;
    }
    
    .cta-title {
        font-size: 1.5rem;
    }
    
    .cta-subtitle {
        font-size: 1rem;
    }
}

/* ========== Feature Strip Layout ========== */
.feature-strip {
    margin-bottom: 4rem;
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-strip:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.feature-strip-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    min-height: 400px;
}

.feature-strip-image {
    width: 100%;
    height: 100%;
    min-height: 400px;
    overflow: hidden;
    position: relative;
}

.feature-strip-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.5s ease;
}

.feature-strip:hover .feature-strip-image img {
    transform: scale(1.05);
}

.feature-strip-text {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.feature-strip-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-lighter);
    line-height: 1;
    margin-bottom: 1rem;
}

.feature-strip h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-strip p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.feature-strip-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-strip-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Highlight Strips - Blue theme */
.highlight-strip {
    background: var(--bg-primary);
}

.highlight-strip .feature-strip-number {
    color: var(--primary-lighter);
}

.highlight-strip h3 {
    color: var(--text-primary);
}

/* Special Strips - Darker theme */
.special-strip {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-darker) 100%);
}

.special-strip .feature-strip-content {
    grid-template-columns: 1fr 1fr;
    min-height: 400px;
}

.special-strip .feature-strip-image {
    min-height: 400px;
    height: 100%;
}

.special-strip.even .feature-strip-content {
    grid-template-columns: 1fr 1fr;
    min-height: 400px;
}

.special-strip .feature-strip-text {
    order: 2;
}

.special-strip .feature-strip-image {
    order: 1;
}

.special-strip.even .feature-strip-text {
    order: 2;
}

.special-strip.even .feature-strip-image {
    order: 1;
}

.special-strip .feature-strip-number {
    color: rgba(255, 255, 255, 0.3);
}

.special-strip h3 {
    color: white;
}

.special-strip p {
    color: rgba(255, 255, 255, 0.9);
}

.special-strip .feature-strip-list li {
    color: rgba(255, 255, 255, 0.9);
}

/* Even strips - reverse layout */
.feature-strip.even .feature-strip-content {
    grid-template-columns: 1fr 1fr;
}

.feature-strip.even .feature-strip-text {
    order: 1;
}

.feature-strip.even .feature-strip-image {
    order: 2;
}

/* Responsive for strips */
@media (max-width: 1024px) {
    .feature-strip-content {
        grid-template-columns: 1fr;
    }
    
    .feature-strip-image {
        min-height: 300px;
        height: 300px;
    }
    
    .feature-strip-text {
        padding: 2rem;
    }
    
    .feature-strip-number {
        font-size: 2.5rem;
    }
    
    .feature-strip h3 {
        font-size: 1.5rem;
    }
    
    /* Reset order on mobile */
    .feature-strip .feature-strip-text {
        order: 2;
    }
    
    .feature-strip .feature-strip-image {
        order: 1;
    }
    
    .special-strip .feature-strip-text {
        order: 2;
    }
    
    .special-strip .feature-strip-image {
        order: 1;
    }
}

@media (max-width: 768px) {
    .feature-strip {
        margin-bottom: 3rem;
        border-radius: 1rem;
    }
    
    .feature-strip-image {
        min-height: 250px;
        height: 250px;
    }
    
    .feature-strip-text {
        padding: 1.5rem;
    }
    
    .feature-strip-number {
        font-size: 2rem;
    }
    
    .feature-strip h3 {
        font-size: 1.25rem;
    }
    
    .feature-strip p {
        font-size: 0.9375rem;
    }
    
    .feature-strip-list li {
        font-size: 0.875rem;
    }
}

/* 与竞品对比板块样式 */
.comparison-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.comparison-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-light), transparent);
    opacity: 0.3;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    position: relative;
    z-index: 1;
}

.comparison-item {
    background: var(--bg-primary);
    border-radius: 1rem;
    padding: 2.5rem;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.comparison-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.comparison-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: 1rem 1rem 0 0;
    opacity: 0.8;
}

.comparison-icon {
    width: 64px !important;
    height: 64px !important;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-lightest), var(--bg-primary));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--primary-light);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.comparison-item:hover .comparison-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-color: var(--primary-dark);
}

.comparison-icon svg {
    width: 32px !important;
    height: 32px !important;
    stroke: var(--primary-color);
    transition: stroke 0.3s ease;
    flex-shrink: 0;
}

.comparison-item:hover .comparison-icon svg {
    stroke: var(--bg-primary);
}

.comparison-item h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    position: relative;
    display: inline-block;
}

.comparison-item h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--primary-light);
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.comparison-item:hover h3::after {
    opacity: 1;
}

.comparison-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
    font-size: 1rem;
}

.comparison-advantages {
    list-style: none;
    padding: 0;
    margin: 0;
}

.advantage-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    background: var(--primary-lightest);
    transform: translateX(5px);
}

.advantage-icon {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    color: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-right: 0.5rem;
    flex-shrink: 0;
}

.advantage-item span {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    display: inline-block;
    margin-bottom: 0.5rem;
    line-height: 1.4;
    white-space: nowrap;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .comparison-section {
        padding: 3rem 0;
    }

    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 2rem;
    }

    .comparison-item {
        padding: 2rem;
    }

    .comparison-icon {
        width: 56px !important;
        height: 56px !important;
    }

    .comparison-icon svg {
        width: 28px !important;
        height: 28px !important;
    }

    .comparison-item h3 {
        font-size: 1.25rem;
    }

    .comparison-item p {
        font-size: 0.9375rem;
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 480px) {
    .comparison-section {
        padding: 2rem 0;
    }

    .comparison-item {
        padding: 1.5rem;
    }

    .comparison-icon {
        width: 48px !important;
        height: 48px !important;
    }

    .comparison-icon svg {
        width: 24px !important;
        height: 24px !important;
    }

    .comparison-item h3 {
        font-size: 1.125rem;
    }

    .comparison-item p {
        font-size: 0.875rem;
    }
}