/* 全局样式重置与基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 焦点可见性 - 无障碍访问 */
*:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* 确保特定组件在聚焦时有良好的视觉反馈 */
.btn:focus-visible,
.nav-menu a:focus-visible,
.service-card:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.3);
}

/* 字体引入与设置 - 现代科技风格 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&display=swap');

:root {
    /* 主色调 - 霓虹科技感蓝紫系 */
    --primary-neon: #00F0FF;
    --primary-neon-dark: #00C0CC;
    --primary-neon-light: #33F3FF;
    --primary-neon-glow: 0 0 20px rgba(0, 240, 255, 0.6);
    
    /* 辅助霓虹色 */
    --secondary-neon: #FF00FF;
    --secondary-neon-dark: #CC00CC;
    --secondary-neon-light: #FF33FF;
    --secondary-neon-glow: 0 0 20px rgba(255, 0, 255, 0.6);
    
    /* 强调霓虹色 */
    --accent-neon: #00FF88;
    --accent-neon-dark: #00CC6C;
    --accent-neon-light: #33FFAA;
    --accent-neon-glow: 0 0 20px rgba(0, 255, 136, 0.6);
    
    /* 深邃背景色 - 科技感黑色系 */
    --bg-deep-primary: #0A0A0F;
    --bg-deep-secondary: #14141A;
    --bg-deep-tertiary: #1E1E28;
    --bg-deep-quaternary: #282832;
    
    /* 网格和几何元素颜色 */
    --grid-color: rgba(0, 240, 255, 0.15);
    --grid-color-bright: rgba(0, 240, 255, 0.4);
    --geometric-color: rgba(255, 0, 255, 0.2);
    --geometric-color-bright: rgba(255, 0, 255, 0.5);
    
    /* 文本颜色 - 高对比度霓虹主题 */
    --text-neon-primary: #FFFFFF;
    --text-neon-secondary: #E0E0E0;
    --text-neon-muted: #B0B0B0;
    --text-neon-subtle: #808080;
    --text-neon-accent: var(--primary-neon);
    
    /* 边框与霓虹阴影 */
    --border-neon: rgba(0, 240, 255, 0.3);
    --border-neon-bright: rgba(0, 240, 255, 0.6);
    --shadow-neon-sm: 0 0 10px rgba(0, 240, 255, 0.3);
    --shadow-neon-md: 0 0 20px rgba(0, 240, 255, 0.4), 0 4px 20px rgba(0, 0, 0, 0.5);
    --shadow-neon-lg: 0 0 40px rgba(0, 240, 255, 0.5), 0 8px 40px rgba(0, 0, 0, 0.7);
    --shadow-neon-glow: 0 0 60px rgba(0, 240, 255, 0.6), 0 12px 60px rgba(0, 0, 0, 0.8);
    
    /* 霓虹渐变效果 */
    --gradient-neon-primary: linear-gradient(135deg, var(--primary-neon), var(--secondary-neon), var(--accent-neon));
    --gradient-neon-secondary: linear-gradient(45deg, var(--secondary-neon), var(--primary-neon));
    --gradient-neon-accent: linear-gradient(90deg, var(--accent-neon), var(--primary-neon));
    --gradient-neon-radial: radial-gradient(circle at center, var(--primary-neon-light) 0%, var(--primary-neon-dark) 100%);
    
    /* 过渡效果 - 科技感 */
    --transition-neon-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-neon-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-neon-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-neon-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* 圆角 - 科技感 */
    --radius-neon-sm: 4px;
    --radius-neon-md: 8px;
    --radius-neon-lg: 12px;
    --radius-neon-xl: 16px;
    --radius-neon-full: 50%;
    
    /* 字体层级 */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* 字重层级 */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
}

/* 字体系统 - 霓虹科技风格 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-deep-primary);
    background-image: 
        linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    color: var(--text-neon-primary);
    line-height: 1.6;
    overflow-x: hidden;
    font-synthesis: none;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    letter-spacing: -0.02em;
}

/* 标题字体 - 科技感字体栈 */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.01em;
    text-transform: uppercase;
}

/* 代码和数字显示 - 等宽字体 */
.code-font, .mono-font, .tech-text {
    font-family: 'Consolas', 'Monaco', 'Lucida Console', monospace;
    font-weight: var(--font-weight-medium);
}

/* 主标题 - 超大科技风格 */
h1 {
    font-size: var(--font-size-6xl);
    font-weight: var(--font-weight-extrabold);
    background: var(--gradient-neon-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 240, 255, 0.3);
    letter-spacing: -0.02em;
}

/* 副标题 - 科技风格 */
h2 {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-neon-primary);
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
    letter-spacing: -0.01em;
}

/* 三级标题 - 科技风格 */
h3 {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-semibold);
    color: var(--text-neon-secondary);
    letter-spacing: 0.01em;
}

/* 四级标题 - 科技风格 */
h4 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-semibold);
    color: var(--text-neon-secondary);
    letter-spacing: 0.02em;
}

/* 五级标题 - 科技风格 */
h5 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-medium);
    color: var(--text-neon-muted);
    letter-spacing: 0.03em;
}

/* 六级标题 - 科技风格 */
h6 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
    color: var(--text-neon-muted);
    letter-spacing: 0.04em;
}

/* 段落文本 - 科技风格 */
p {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    color: var(--text-neon-secondary);
    line-height: 1.7;
    letter-spacing: -0.01em;
}

/* 小文本 - 科技风格 */
small, .text-small {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    color: var(--text-neon-subtle);
    letter-spacing: 0.02em;
}

/* 强调文本 - 霓虹风格 */
strong, b, .text-strong {
    font-weight: var(--font-weight-bold);
    color: var(--text-neon-primary);
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
}

/* 链接文本 - 霓虹风格 */
a {
    color: var(--text-neon-accent);
    text-decoration: none;
    transition: all var(--transition-neon-fast);
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.01em;
}

a:hover {
    color: var(--primary-neon-light);
    text-shadow: 0 0 15px var(--primary-neon-glow);
}

/* 代码文本 - 科技风格 */
code, pre {
    font-family: 'Consolas', 'Monaco', 'Lucida Console', monospace;
    font-weight: var(--font-weight-medium);
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--border-neon);
    border-radius: var(--radius-neon-sm);
    color: var(--accent-neon);
    padding: 2px 6px;
    font-size: 0.9em;
}

pre {
    padding: 16px;
    overflow-x: auto;
    background: rgba(10, 10, 15, 0.8);
    border-left: 3px solid var(--accent-neon);
}

/* 科技感背景网格动画 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, var(--geometric-color) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, var(--grid-color-bright) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, var(--geometric-color-bright) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundFloat 20s ease-in-out infinite;
    pointer-events: none;
}

@keyframes backgroundFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(1deg); }
    66% { transform: translateY(-10px) rotate(-1deg); }
}

/* 容器样式 */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航栏 - 霓虹科技风格 */
.navbar {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(30px);
    border-bottom: 1px solid var(--border-neon);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-neon-base);
    box-shadow: var(--shadow-neon-md);
    position: relative;
    overflow: hidden;
}

/* 导航栏霓虹边框效果 */
.navbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 1px;
    background: var(--gradient-neon-accent);
    animation: neonBorderFlow 3s linear infinite;
}

.navbar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--gradient-neon-accent);
    opacity: 0.5;
    box-shadow: var(--primary-neon-glow);
}

@keyframes neonBorderFlow {
    0% { left: -100%; }
    100% { left: 100%; }
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
}

.logo h1 {
    font-size: 2rem;
    font-weight: var(--font-weight-extrabold);
    background: var(--gradient-neon-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
    transition: all var(--transition-neon-base);
    text-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
    position: relative;
}

.logo h1::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-neon-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: blur(8px);
    opacity: 0.7;
    z-index: -1;
    animation: neonTextPulse 2s ease-in-out infinite alternate;
}

@keyframes neonTextPulse {
    0% { opacity: 0.7; }
    100% { opacity: 0.3; }
}

.logo h1:hover {
    filter: drop-shadow(0 0 25px rgba(0, 240, 255, 0.8));
    transform: scale(1.05) translateY(-2px);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-menu a {
    color: var(--text-neon-secondary);
    text-decoration: none;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    padding: 12px 20px;
    border-radius: var(--radius-neon-md);
    transition: all var(--transition-neon-base);
    border: 1px solid var(--border-neon);
    position: relative;
    overflow: hidden;
    background: rgba(20, 20, 26, 0.3);
    backdrop-filter: blur(10px);
}

.nav-menu a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--primary-neon-light), transparent);
    transition: left var(--transition-neon-slow);
    opacity: 0.3;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: var(--gradient-neon-radial);
    border-radius: var(--radius-neon-full);
    transform: translate(-50%, -50%);
    transition: all var(--transition-neon-base);
    z-index: -1;
    opacity: 0;
}

.nav-menu a:hover {
    color: var(--text-neon-primary);
    border-color: var(--border-neon-bright);
    box-shadow: var(--shadow-neon-md);
    transform: translateY(-3px) scale(1.05);
    background: rgba(0, 240, 255, 0.1);
}

.nav-menu a:hover::before {
    left: 100%;
}

.nav-menu a:hover::after {
    width: 120%;
    height: 120%;
    opacity: 0.2;
}

.nav-menu a:focus-visible {
    outline: 2px solid var(--primary-neon);
    outline-offset: 2px;
    box-shadow: var(--primary-neon-glow);
}

/* Banner区域 - 霓虹科技风格 */
.banner {
    position: relative;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background: radial-gradient(ellipse at center, var(--bg-deep-secondary) 0%, var(--bg-deep-primary) 70%, var(--bg-deep-quaternary) 100%);
    border-bottom: 1px solid var(--border-neon);
}

/* Banner区域几何装饰元素 */
.banner::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 10%;
    width: 200px;
    height: 200px;
    background: var(--gradient-neon-secondary);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: geometricFloat 8s ease-in-out infinite;
    z-index: 1;
}

.banner::after {
    content: '';
    position: absolute;
    bottom: 30%;
    right: 15%;
    width: 150px;
    height: 150px;
    background: var(--gradient-neon-accent);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    filter: blur(60px);
    opacity: 0.4;
    animation: geometricRotate 12s linear infinite;
    z-index: 1;
}

@keyframes geometricFloat {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-30px) scale(1.1); }
}

@keyframes geometricRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#particles {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

/* Banner内容 - 霓虹科技风格 */
.banner-content {
    text-align: center;
    z-index: 2;
    max-width: 900px;
    padding: 0 24px;
}

.banner-content h2 {
    font-size: var(--font-size-6xl);
    font-weight: var(--font-weight-extrabold);
    margin-bottom: 24px;
    background: var(--gradient-neon-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -2px;
    line-height: 1.1;
    position: relative;
    animation: neonTitleGlow 3s ease-in-out infinite alternate;
}

@keyframes neonTitleGlow {
    0% { 
        filter: drop-shadow(0 0 20px rgba(0, 240, 255, 0.6)) drop-shadow(0 0 40px rgba(255, 0, 255, 0.4));
    }
    100% { 
        filter: drop-shadow(0 0 30px rgba(0, 240, 255, 0.8)) drop-shadow(0 0 60px rgba(255, 0, 255, 0.6));
    }
}

.banner-content p {
    font-size: var(--font-size-xl);
    color: var(--text-neon-secondary);
    margin-bottom: 48px;
    font-weight: var(--font-weight-light);
    letter-spacing: 1px;
    opacity: 0.9;
    animation: subtitleFadeIn 2s ease-out 0.5s both;
}

@keyframes subtitleFadeIn {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 0.9; transform: translateY(0); }
}   max-width: 900px;
    padding: 32px;
    animation: fadeInUp 1s ease-out;
}

.banner-content h2 {
    font-size: clamp(2rem, 5vw, 3.8rem);
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -0.8px;
    line-height: 1.2;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 137, 123, 0.25);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.banner-content p {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    font-weight: 400;
    margin-bottom: 48px;
    color: var(--text-secondary);
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* 按钮样式 - 霓虹科技风格 */
.btn {
    display: inline-block;
    padding: 18px 52px;
    background: transparent;
    color: var(--primary-neon);
    text-decoration: none;
    border: 2px solid var(--primary-neon);
    border-radius: var(--radius-neon-lg);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-neon-base);
    position: relative;
    overflow: hidden;
    letter-spacing: 1px;
    text-transform: uppercase;
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
}

/* 霓虹按钮内部光效 */
.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--primary-neon-light), transparent);
    transition: left var(--transition-neon-slow);
    z-index: -1;
    opacity: 0.8;
}

/* 霓虹按钮背景光晕 */
.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: var(--gradient-neon-radial);
    border-radius: var(--radius-neon-full);
    transform: translate(-50%, -50%);
    transition: all var(--transition-neon-base);
    z-index: -2;
    opacity: 0;
}

.btn:hover {
    color: var(--bg-deep-primary);
    border-color: var(--primary-neon-light);
    box-shadow: var(--shadow-neon-lg);
    transform: translateY(-4px) scale(1.05);
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.8);
}

.btn:hover::before {
    left: 100%;
    animation: neonFlow 1.5s linear infinite;
}

.btn:hover::after {
    width: 200px;
    height: 200px;
    opacity: 0.6;
}

@keyframes neonFlow {
    0% { left: -100%; }
    100% { left: 100%; }
}

.btn:active {
    transform: translateY(-1px) scale(1.02);
    box-shadow: var(--shadow-neon-md);
}

.btn span {
    position: relative;
    z-index: 2;
}

.btn:active {
    transform: translateY(-2px) scale(1.03) perspective(1px) translateZ(0);
    box-shadow: var(--shadow-md);
    transition: all 0.1s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 通用区块样式 */
section {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

/* 区块标题 - 霓虹科技风格 */
.section-title {
    text-align: center;
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-extrabold);
    margin-bottom: 80px;
    color: var(--text-neon-primary);
    position: relative;
    letter-spacing: -1px;
    text-transform: uppercase;
    background: var(--gradient-neon-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -24px;
    left: 50%;
    transform: translateX(-50%);
    width: 140px;
    height: 3px;
    background: var(--gradient-neon-accent);
    border-radius: var(--radius-neon-sm);
    box-shadow: var(--primary-neon-glow);
    animation: neonPulse 2s ease-in-out infinite;
}

@keyframes neonPulse {
    0%, 100% { 
        box-shadow: var(--primary-neon-glow);
        opacity: 1;
    }
    50% { 
        box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
        opacity: 0.7;
    }
}

/* 业务板块 - 霓虹科技风格 */
.services {
    background: var(--bg-deep-secondary);
    position: relative;
    border-top: 1px solid var(--border-neon);
    border-bottom: 1px solid var(--border-neon);
}

/* 服务板块背景网格增强 */
.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(45deg, var(--grid-color) 1px, transparent 1px),
        linear-gradient(-45deg, var(--grid-color) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.3;
    z-index: 1;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-top: 40px;
}

/* 服务卡片 - 霓虹科技风格 */
.service-card {
    background: rgba(30, 30, 40, 0.4);
    border: 2px solid var(--border-neon);
    border-radius: var(--radius-neon-lg);
    padding: 56px 40px;
    text-align: center;
    transition: all var(--transition-neon-base);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-neon-sm);
    backdrop-filter: blur(20px);
    z-index: 2;
}

/* 服务卡片霓虹边框光效 */
.service-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-neon-primary);
    border-radius: var(--radius-neon-lg);
    opacity: 0;
    z-index: -1;
    transition: opacity var(--transition-neon-base);
    animation: neonBorderGlow 4s ease-in-out infinite;
}

@keyframes neonBorderGlow {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.8; }
}

/* 服务卡片悬停效果 */
.service-card:hover {
    transform: translateY(-20px) scale(1.08) rotateX(8deg);
    box-shadow: var(--shadow-neon-lg), var(--primary-neon-glow);
    border-color: var(--border-neon-bright);
    background: rgba(40, 40, 50, 0.6);
    animation: neonCardHover 3s ease-in-out infinite alternate;
    transition: all var(--transition-neon-slow);
}

@keyframes neonCardHover {
    0% { 
        box-shadow: var(--shadow-neon-lg), var(--primary-neon-glow);
        border-color: var(--border-neon-bright);
    }
    100% { 
        box-shadow: var(--shadow-neon-glow), var(--secondary-neon-glow);
        border-color: var(--secondary-neon-light);
    }
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.05), rgba(0, 192, 83, 0.05));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(0, 122, 255, 0.15), transparent 70%);
    border-radius: 50%;
    transition: width 0.6s ease, height 0.6s ease;
}

.service-card:hover {
    transform: translateY(-20px) scale(1.08) rotateX(8deg);
    box-shadow: var(--shadow-neon-lg), var(--primary-neon-glow);
    border-color: var(--border-neon-bright);
    background: rgba(40, 40, 50, 0.6);
    animation: neonCardHover 3s ease-in-out infinite alternate;
    transition: all var(--transition-neon-slow);
}

@keyframes neonCardHover {
    0% { 
        box-shadow: var(--shadow-neon-lg), var(--primary-neon-glow);
        border-color: var(--border-neon-bright);
    }
    100% { 
        box-shadow: var(--shadow-neon-glow), var(--secondary-neon-glow);
        border-color: var(--secondary-neon-light);
    }
}

.service-card:hover::before {
    opacity: 1;
    transition: opacity 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.service-card:hover::after {
    width: 400px;
    height: 400px;
    transition: width 0.8s cubic-bezier(0.34, 1.56, 0.64, 1), height 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.service-card:hover .service-icon {
    transform: scale(1.2) rotate(5deg);
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.service-card:hover h3 {
    color: var(--primary-blue);
    animation: textGlow 1.5s ease-in-out infinite alternate;
    transition: color 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.service-icon {
    margin-bottom: 40px;
    position: relative;
    z-index: 2;
    transition: all var(--transition-neon-base);
    filter: drop-shadow(0 0 15px rgba(0, 240, 255, 0.4));
}

.service-card:hover .service-icon {
    transform: scale(1.3) rotate(10deg);
    filter: drop-shadow(0 0 25px rgba(0, 240, 255, 0.8));
    animation: neonIconPulse 1s ease-in-out infinite alternate;
}

@keyframes neonIconPulse {
    0% { filter: drop-shadow(0 0 25px rgba(0, 240, 255, 0.8)); }
    100% { filter: drop-shadow(0 0 35px rgba(255, 0, 255, 0.8)); }
}

.service-card h3 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: 24px;
    color: var(--text-neon-primary);
    position: relative;
    z-index: 2;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: all var(--transition-neon-base);
}

.service-card:hover h3 {
    color: var(--primary-neon);
    text-shadow: var(--primary-neon-glow);
    animation: neonTextPulse 1.5s ease-in-out infinite alternate;
}

.service-card p {
    color: var(--text-neon-secondary);
    line-height: 1.8;
    font-size: var(--font-size-base);
    position: relative;
    z-index: 2;
    font-weight: var(--font-weight-normal);
    letter-spacing: 0.5px;
    transition: all var(--transition-neon-base);
}

.service-card:hover p {
    color: var(--text-neon-primary);
    text-shadow: 0 0 5px rgba(0, 240, 255, 0.3);
}

/* 关于我们 - 霓虹科技风格 */
.about {
    background: linear-gradient(135deg, var(--bg-deep-secondary) 0%, var(--bg-deep-primary) 100%);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 20%, var(--geometric-color) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, var(--grid-color-bright) 0%, transparent 50%);
    animation: backgroundFloat 25s ease-in-out infinite;
    pointer-events: none;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.about-text p {
    font-size: 1.15rem;
    margin-bottom: 28px;
    color: var(--text-neon-secondary);
    line-height: 1.8;
    font-weight: 400;
    letter-spacing: 0.02em;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.stat-item {
    background: rgba(20, 20, 30, 0.6);
    border: 2px solid var(--border-neon);
    border-radius: var(--radius-neon-lg);
    padding: 40px 24px;
    text-align: center;
    transition: all var(--transition-neon-base);
    box-shadow: var(--shadow-neon-sm);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-neon), transparent);
    transform: scaleX(0);
    transition: transform var(--transition-neon-base);
}

.stat-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.05), rgba(255, 0, 255, 0.05));
    opacity: 0;
    transition: opacity var(--transition-neon-base);
    z-index: 1;
}

.stat-item:hover {
    transform: translateY(-12px) scale(1.08) rotateY(5deg);
    box-shadow: var(--shadow-neon-lg), var(--primary-neon-glow);
    border-color: var(--border-neon-bright);
    background: rgba(40, 40, 50, 0.8);
    animation: neonStatHover 2s ease-in-out infinite alternate;
    transition: all var(--transition-neon-slow);
}

.stat-item:hover::before {
    transform: scaleX(1);
    transition: transform var(--transition-neon-slow);
}

.stat-item:hover::after {
    opacity: 1;
    transition: opacity var(--transition-neon-slow);
}

.stat-item:hover .stat-number {
    transform: scale(1.1);
    animation: neonTextPulse 1.5s ease-in-out infinite alternate;
    transition: transform var(--transition-neon-slow);
}

.stat-number {
    font-size: clamp(2.5rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--primary-neon);
    text-shadow: var(--primary-neon-glow);
    margin-bottom: 12px;
    line-height: 1;
    letter-spacing: -1px;
    transition: all var(--transition-neon-base);
    position: relative;
    z-index: 2;
}

.stat-item:hover .stat-label {
    color: var(--primary-neon-light);
    transition: color var(--transition-neon-base);
}

.stat-label {
    color: var(--text-neon-muted);
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    z-index: 2;
}

/* 联系我们 - 霓虹科技风格 */
.contact {
    background: linear-gradient(135deg, var(--bg-deep-primary) 0%, var(--bg-deep-tertiary) 100%);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-neon), transparent);
    box-shadow: var(--primary-neon-glow);
}

.contact-content {
    display: flex;
    justify-content: center;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 36px;
    width: 100%;
    max-width: 960px;
}

.contact-item {
    background: rgba(20, 20, 30, 0.6);
    border: 2px solid var(--border-neon);
    border-radius: var(--radius-neon-lg);
    padding: 44px 32px;
    text-align: center;
    transition: all var(--transition-neon-base);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-neon-sm);
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    background: radial-gradient(circle, var(--primary-neon-glow), transparent 70%);
    border-radius: 50%;
    transition: width var(--transition-neon-slow), height var(--transition-neon-slow);
}

.contact-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.05), rgba(255, 0, 255, 0.05));
    opacity: 0;
    transition: opacity var(--transition-neon-base);
    z-index: 1;
}

.contact-item:hover {
    transform: translateY(-12px) scale(1.06) rotateX(-3deg);
    box-shadow: var(--shadow-neon-lg), var(--primary-neon-glow);
    border-color: var(--border-neon-bright);
    background: rgba(40, 40, 50, 0.8);
    animation: neonContactHover 2s ease-in-out infinite alternate;
    transition: all var(--transition-neon-slow);
}

.contact-item:hover::before {
    width: 350px;
    height: 350px;
    transition: width var(--transition-neon-slow), height var(--transition-neon-slow);
}

.contact-item:hover::after {
    opacity: 1;
    transition: opacity var(--transition-neon-slow);
}

.contact-item:hover h3 {
    color: var(--primary-neon-light);
    animation: neonTextPulse 1.5s ease-in-out infinite alternate;
    transition: color var(--transition-neon-base);
    transform: translateY(-5px);
}

.contact-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--primary-neon);
    position: relative;
    z-index: 2;
    letter-spacing: 0.5px;
    transition: all var(--transition-neon-base);
}

.contact-item:hover p {
    color: var(--text-neon-primary);
    transition: color var(--transition-neon-base);
}

.contact-item p {
    color: var(--text-neon-secondary);
    font-size: 1.05rem;
    line-height: 1.6;
    position: relative;
    z-index: 2;
    font-weight: 400;
}

/* 页脚 - 霓虹科技风格 */
.footer {
    background: linear-gradient(135deg, var(--bg-deep-tertiary) 0%, var(--bg-deep-primary) 100%);
    border-top: 2px solid var(--border-neon);
    padding: 80px 0 40px;
    position: relative;
    box-shadow: var(--shadow-neon-lg);
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-neon), transparent);
    box-shadow: var(--primary-neon-glow);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 32px;
}

.footer-logo h3 {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-neon), var(--secondary-neon));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    text-shadow: var(--primary-neon-glow);
}

.footer-links {
    display: flex;
    gap: 28px;
    margin: 8px 0 24px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: var(--text-neon-muted);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: all var(--transition-neon-base);
    padding: 8px 16px;
    border-radius: var(--radius-neon-sm);
    position: relative;
    letter-spacing: 0.5px;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-neon), transparent);
    transition: transform var(--transition-neon-base);
    border-radius: 1px;
    box-shadow: var(--primary-neon-glow);
}

.footer-links a:hover {
    color: var(--primary-neon-light);
    transform: translateY(-2px);
    text-shadow: var(--primary-neon-glow);
}

.footer-links a:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.footer-copyright {
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--border-neon);
    width: 100%;
    color: var(--text-neon-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-copyright p {
    margin: 8px 0;
    font-weight: 400;
}

/* 动画效果 - 扩展版 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(60px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}

@keyframes neonFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 122, 255, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(0, 122, 255, 0.5), 0 0 60px rgba(38, 198, 218, 0.3);
    }
}

@keyframes neonStatHover {
    0% { 
        box-shadow: var(--shadow-neon-lg), var(--primary-neon-glow);
        border-color: var(--border-neon-bright);
    }
    100% { 
        box-shadow: var(--shadow-neon-glow), var(--secondary-neon-glow);
        border-color: var(--secondary-neon-light);
    }
}

@keyframes neonContactHover {
    0% { 
        box-shadow: var(--shadow-neon-lg), var(--primary-neon-glow);
        border-color: var(--border-neon-bright);
    }
    100% { 
        box-shadow: var(--shadow-neon-glow), var(--accent-neon-glow);
        border-color: var(--accent-neon-light);
    }
}

@keyframes neonTextPulse {
    0%, 100% {
        text-shadow: var(--primary-neon-glow);
        transform: scale(1);
    }
    50% {
        text-shadow: var(--primary-neon-glow), var(--secondary-neon-glow);
        transform: scale(1.02);
    }
}

@keyframes rotateSlow {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes slideInUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes borderPulse {
    0%, 100% {
        border-color: var(--primary-blue);
        box-shadow: 0 0 0 0 rgba(0, 122, 255, 0.4);
    }
    50% {
        border-color: var(--primary-blue-light);
        box-shadow: 0 0 0 8px rgba(0, 122, 255, 0);
    }
}

@keyframes textGlow {
    0%, 100% {
        text-shadow: 0 0 5px rgba(0, 122, 255, 0.5);
    }
    50% {
        text-shadow: 0 0 20px rgba(0, 122, 255, 0.8), 0 0 30px rgba(0, 122, 255, 0.5);
    }
}

@keyframes scrollIndicator {
    0%, 100% {
        opacity: 0.5;
        transform: translateY(0);
    }
    50% {
        opacity: 1;
        transform: translateY(10px);
    }
}

/* 加载动画 */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

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

@keyframes wave {
    0%, 100% {
        transform: scaleY(0.5);
    }
    50% {
        transform: scaleY(1);
    }
}

/* 滚动动画优化 - 霓虹科技风格 */
/* 性能优化：使用GPU加速，添加will-change属性 */
.animate-from-bottom,
.animate-from-left,
.animate-from-right,
.animate-scale-in,
.service-card,
.about-text,
.about-stats,
.stat-item,
.contact-item {
    will-change: opacity, transform;
    transform: translateZ(0); /* 触发GPU加速 */
    backface-visibility: hidden;
    perspective: 1000px;
}

/* 方案1：从底部滑入 */
.animate-from-bottom {
    opacity: 0;
    transform: translateY(60px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1), transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.animate-from-bottom.animate {
    opacity: 1;
    transform: translateY(0);
}

/* 方案2：从左侧滑入 */
.animate-from-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1), transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.animate-from-left.animate {
    opacity: 1;
    transform: translateX(0);
}

/* 方案3：从右侧滑入 */
.animate-from-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1), transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.animate-from-right.animate {
    opacity: 1;
    transform: translateX(0);
}

/* 方案4：缩放淡入 */
.animate-scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s cubic-bezier(0.23, 1, 0.32, 1), transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.animate-scale-in.animate {
    opacity: 1;
    transform: scale(1);
}

/* 应用动画到元素 */
.service-card {
    opacity: 0;
    transform: translateY(60px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1), transform 0.8s cubic-bezier(0.23, 1, 0.32, 1), all var(--transition-neon-base);
}

.service-card.animate {
    opacity: 1;
    transform: translateY(0);
    animation: neonFloat 3s ease-in-out infinite;
}

.about-text {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1), transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.about-text.animate {
    opacity: 1;
    transform: translateX(0);
}

.about-stats {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1), transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.about-stats.animate {
    opacity: 1;
    transform: translateX(0);
}

.stat-item {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s cubic-bezier(0.23, 1, 0.32, 1), transform 0.6s cubic-bezier(0.23, 1, 0.32, 1), all var(--transition-neon-base);
}

.stat-item.animate {
    opacity: 1;
    transform: scale(1);
}

.contact-item {
    opacity: 0;
    transform: translateY(60px);
    transition: opacity 0.8s cubic-bezier(0.23, 1, 0.32, 1), transform 0.8s cubic-bezier(0.23, 1, 0.32, 1), all var(--transition-neon-base);
}

.contact-item.animate {
    opacity: 1;
    transform: translateY(0);
}

/* 延迟动画序列 */
.service-card:nth-child(1),
.stat-item:nth-child(1),
.contact-item:nth-child(1) {
    transition-delay: 0.1s;
}

.service-card:nth-child(2),
.stat-item:nth-child(2),
.contact-item:nth-child(2) {
    transition-delay: 0.2s;
}

.service-card:nth-child(3),
.stat-item:nth-child(3),
.contact-item:nth-child(3) {
    transition-delay: 0.3s;
}

.service-card:nth-child(4),
.stat-item:nth-child(4),
.contact-item:nth-child(4) {
    transition-delay: 0.4s;
}

/* 滚动指示器 */
.scroll-indicator {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 50px;
    border: 2px solid var(--primary-blue);
    border-radius: 15px;
    opacity: 0.7;
    animation: scrollIndicator 2s ease-in-out infinite;
    z-index: 999;
    cursor: pointer;
    transition: opacity var(--transition-base);
}

.scroll-indicator:hover {
    opacity: 1;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--primary-blue);
    border-radius: 2px;
    animation: scrollIndicator 1.5s ease-in-out infinite;
}

/* 响应式设计 - 霓虹科技风格 */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
    
    .about-content {
        gap: 60px;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-info {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 540px;
        padding: 0 20px;
    }
    
    .nav-menu {
        gap: 20px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .banner-content h2 {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .service-card {
        padding: 40px 24px;
    }
    
    .stat-item {
        padding: 32px 20px;
    }
    
    .contact-item {
        padding: 32px 24px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 12px;
        align-items: center;
    }
    
    .banner-content h2 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .service-icon {
        margin-bottom: 24px;
    }
    
    .service-icon svg {
        width: 48px;
        height: 48px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
    
    .footer-copyright {
        font-size: 0.85rem;
    }
}

/* 高分辨率屏幕优化 - 霓虹科技风格 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .service-icon svg {
        stroke-width: 1.5;
    }
    
    .stat-number {
        font-weight: 700;
    }
    
    /* 霓虹效果在高分辨率屏幕上的优化 */
    .service-card::before,
    .stat-item::before,
    .contact-item::before {
        filter: blur(0.5px);
    }
    
    .section-title::after {
        filter: blur(0.5px);
    }
}

/* 深色模式支持 - 霓虹科技风格 */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-deep-primary: #0a0a0a;
        --bg-deep-secondary: #1a1a1a;
        --bg-deep-tertiary: #252525;
        --text-neon-primary: #ffffff;
        --text-neon-secondary: #b3b3b3;
        --text-neon-muted: #666666;
        --border-neon: #333333;
        --border-neon-bright: #00f0ff;
    }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .service-card.animate {
        animation: none;
    }
    
    .service-card:hover {
        animation: none;
    }
}

/* 可访问性改进 */
@media (prefers-contrast: high) {
    :root {
        --text-neon-secondary: #ffffff;
        --text-neon-muted: #cccccc;
        --border-neon: #ffffff;
        --border-neon-bright: #00ffff;
    }
    
    .service-card,
    .stat-item,
    .contact-item {
        border-width: 2px;
    }
}

/* 焦点可见性 - 霓虹科技风格 */
*:focus {
    outline: 2px solid var(--primary-neon);
    outline-offset: 2px;
    box-shadow: var(--primary-neon-glow);
}

*:focus-visible {
    outline: 2px solid var(--primary-neon);
    outline-offset: 2px;
    box-shadow: var(--primary-neon-glow);
}

*:focus:not(:focus-visible) {
    outline: none;
    box-shadow: none;
}

/* 按钮焦点状态 */
.btn:focus {
    box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.3), var(--primary-neon-glow);
}

/* 导航链接焦点状态 */
.nav-menu a:focus {
    background: rgba(0, 240, 255, 0.1);
    border-radius: var(--radius-neon-sm);
    box-shadow: var(--primary-neon-glow);
}

/* 服务卡片焦点状态 */
.service-card:focus {
    box-shadow: var(--shadow-neon-lg), 0 0 0 3px rgba(0, 240, 255, 0.3), var(--primary-neon-glow);
}

/* 联系信息焦点状态 */
.contact-item a:focus {
    outline: 2px solid var(--primary-neon);
    outline-offset: 2px;
    border-radius: 2px;
    box-shadow: var(--primary-neon-glow);
}

/* 打印样式 - 霓虹科技风格 */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .navbar,
    .particles,
    .btn,
    .footer {
        display: none;
    }
    
    .service-card,
    .stat-item,
    .contact-item {
        border: 1px solid black;
        box-shadow: none;
    }
    
    .section-title {
        color: black;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
    
    a[href]:after {
        content: " (" attr(href) ")";
    }
    
    /* 隐藏霓虹效果 */
    .service-card::before,
    .service-card::after,
    .stat-item::before,
    .stat-item::after,
    .contact-item::before,
    .contact-item::after,
    .section-title::after {
        display: none;
    }
}
    .about-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 28px;
    }
    
    .contact-info {
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .banner-content {
        padding: 24px;
    }
    
    .section-title {
        margin-bottom: 56px;
    }
    
    section {
        padding: 80px 0;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .service-card {
        padding: 44px 28px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .stat-item {
        padding: 36px 20px;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .contact-item {
        padding: 40px 24px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
    
    .footer {
        padding: 60px 0 32px;
    }
}

@media (max-width: 480px) {
    .banner-content h2 {
        font-size: 2.5rem;
    }
    
    .banner-content p {
        font-size: 1.1rem;
        margin-bottom: 40px;
    }
    
    .btn {
        padding: 14px 36px;
        font-size: 1rem;
    }
    
    section {
        padding: 64px 0;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 48px;
    }
    
    .service-card {
        padding: 36px 24px;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-blue);
    border-radius: 5px;
    opacity: 0.5;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-blue-dark);
    opacity: 0.8;
}

/* 选择文本样式 */
::selection {
    background: rgba(0, 122, 255, 0.2);
    color: var(--primary-blue);
}

::-moz-selection {
    background: rgba(0, 122, 255, 0.2);
    color: var(--primary-blue);
}

/* ICP备案信息样式 - 强制居中 */
body > .icp-info {
    background: var(--bg-secondary) !important;
    border-top: 1px solid var(--border-color) !important;
    padding: 20px 0 !important;
    margin-top: 60px !important;
    width: 100% !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    position: relative !important;
    left: 0 !important;
    right: 0 !important;
    clear: both !important;
    float: none !important;
}

.icp-info p {
    margin: 0 auto !important;
    font-size: 0.9rem !important;
    color: var(--text-muted) !important;
    font-weight: 400 !important;
    text-align: center !important;
    flex: 0 0 auto !important;
    width: auto !important;
    max-width: none !important;
    display: inline-block !important;
    float: none !important;
    position: relative !important;
    left: 0 !important;
}

.icp-info a {
    color: var(--text-muted) !important;
    text-decoration: none !important;
    transition: color var(--transition-fast) !important;
    display: inline !important;
}

.icp-info a:hover {
    color: var(--primary-blue) !important;
    text-decoration: underline !important;
}

/* 页面加载动画 */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading.hidden {
    opacity: 0;
    pointer-events: none;
}