/* 全局样式 */
:root {
    --primary-color: #00c3ff;
    --secondary-color: #0097e6;
    --accent-color: #00e5cc;
    --text-color: #333333;
    --light-text: #ffffff;
    --light-bg: #102a45;
    --dark-bg: #0c1f32;
    --border-color: #1a5a7e;
    --glow-color: rgba(0, 195, 255, 0.8);
    --card-bg: rgba(16, 42, 69, 0.8);
    --glass-bg: rgba(16, 42, 69, 0.5);
    --glass-border: rgba(0, 195, 255, 0.3);
    --neon-shadow: 0 0 10px rgba(0, 195, 255, 0.5), 0 0 20px rgba(0, 195, 255, 0.3), 0 0 30px rgba(0, 195, 255, 0.1);
    --cyber-gradient: linear-gradient(135deg, #00c3ff, #00e5cc);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    line-height: 1.6;
    color: var(--light-text);
    background-color: #0e2440;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(0, 195, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(0, 229, 204, 0.08) 0%, transparent 50%),
        linear-gradient(to bottom, #0e2440, #143456, #0e2440);
    background-attachment: fixed;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Cg fill='%2300c3ff' fill-opacity='0.03'%3E%3Cpath d='M0 0h1v1H0zM99 0h1v1h-1zM0 99h1v1H0zM99 99h1v1h-1z'/%3E%3C/g%3E%3C/svg%3E"),
                      url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200' viewBox='0 0 200 200'%3E%3Cline x1='0' y1='0' x2='200' y2='200' stroke='%2300c3ff' stroke-width='0.5' stroke-opacity='0.02'/%3E%3Cline x1='200' y1='0' x2='0' y2='200' stroke='%2300c3ff' stroke-width='0.5' stroke-opacity='0.02'/%3E%3C/svg%3E");
    z-index: -1;
    pointer-events: none;
}

/* 添加科技感滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2:after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

/* .section-header p {
    font-size: 1.2rem;
    color: var(--text-color);
} */

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
    z-index: 1;
    letter-spacing: 2px;
    text-transform: uppercase;
    clip-path: polygon(5% 0, 100% 0, 95% 100%, 0% 100%);
}

.btn-primary {
    background: var(--cyber-gradient);
    color: var(--dark-bg);
    box-shadow: var(--neon-shadow);
    border: 1px solid var(--primary-color);
}

.btn-primary:hover {
    box-shadow: 0 0 15px var(--primary-color);
    transform: translateY(-3px);
    color: var(--dark-bg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    box-shadow: 0 0 10px rgba(0, 247, 255, 0.2);
    text-shadow: 0 0 5px var(--primary-color);
}

.btn-secondary:hover {
    background-color: rgba(0, 247, 255, 0.1);
    color: var(--primary-color);
    box-shadow: 0 0 15px var(--primary-color);
    transform: translateY(-3px);
    border-color: var(--accent-color);
}

.btn .btn-glitch {
    display: none; /* 移除闪烁效果 */
}

/* 导航栏样式 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(14, 36, 64, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: 0 0 30px rgba(0, 195, 255, 0.2);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--primary-color);
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, transparent 0%, rgba(0, 247, 255, 0.1) 50%, transparent 100%);
    pointer-events: none;
}

/* 移除导航栏动画 */

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    position: relative;
}

.logo h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
    font-weight: bold;
    text-shadow: 0 0 15px var(--glow-color);
    letter-spacing: 2px;
    position: relative;
    text-transform: uppercase;
}

.logo h1::before {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background-color: var(--accent-color);
    border-radius: 50%;
    left: -16px;
    top: 50%;
    transform: translateY(-50%);
    box-shadow: 0 0 15px var(--accent-color);
}

.logo h1::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
    filter: blur(4px);
    opacity: 0.7;
    pointer-events: none;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
    position: relative;
}

nav ul li a {
    text-decoration: none;
    color: var(--light-text);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.9rem;
}

nav ul li a:hover {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--glow-color);
}

nav ul li a::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    background: var(--primary-color);
    bottom: 0;
    left: 0;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
    box-shadow: 0 0 10px var(--primary-color);
}

nav ul li a:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%) scale(0);
    transition: transform 0.3s ease;
    box-shadow: 0 0 10px var(--primary-color);
}

nav ul li a:hover::after {
    transform: translateX(-50%) scale(1);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* 主页横幅样式 */
.hero {
    background: linear-gradient(rgba(14, 36, 64, 0.7), rgba(14, 36, 64, 0.7)), 
                url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="1920" height="1080" viewBox="0 0 1920 1080"><defs><linearGradient id="grad" x1="0%" y1="0%" x2="0%" y2="100%"><stop offset="0%" style="stop-color:%230e2440;stop-opacity:1" /><stop offset="100%" style="stop-color:%23143456;stop-opacity:1" /></linearGradient><filter id="glow" x="-20%" y="-20%" width="140%" height="140%"><feGaussianBlur stdDeviation="10" result="blur" /><feComposite in="SourceGraphic" in2="blur" operator="over" /></filter><radialGradient id="rgrad" cx="50%" cy="50%" r="50%" fx="50%" fy="50%"><stop offset="0%" style="stop-color:%2300c3ff;stop-opacity:0.3" /><stop offset="100%" style="stop-color:%2300c3ff;stop-opacity:0" /></radialGradient></defs><rect width="100%" height="100%" fill="url(%23grad)"/><circle cx="50%" cy="50%" r="800" fill="url(%23rgrad)" opacity="0.2" /><g><path d="M400,700 C400,650 450,600 500,600 C550,600 600,650 600,700 L600,900 L400,900 Z" fill="rgba(0,195,255,0.15)" filter="url(%23glow)" /><circle cx="500" cy="550" r="80" fill="rgba(0,195,255,0.15)" filter="url(%23glow)" /><rect x="450" y="400" width="100" height="30" rx="15" fill="rgba(0,195,255,0.15)" filter="url(%23glow)" /><rect x="485" y="365" width="30" height="100" rx="15" fill="rgba(0,195,255,0.15)" filter="url(%23glow)" /></g><g><rect x="1200" y="500" width="200" height="300" rx="20" fill="rgba(0,195,255,0.1)" /><rect x="1225" y="525" width="150" height="40" rx="5" fill="rgba(0,195,255,0.2)" /><rect x="1225" y="585" width="150" height="40" rx="5" fill="rgba(0,195,255,0.2)" /><rect x="1225" y="645" width="150" height="40" rx="5" fill="rgba(0,195,255,0.2)" /><rect x="1225" y="705" width="150" height="40" rx="5" fill="rgba(0,195,255,0.2)" /></g><g><circle cx="900" cy="600" r="120" fill="rgba(0,195,255,0.05)" stroke="rgba(0,195,255,0.3)" stroke-width="5" filter="url(%23glow)" /><path d="M850,550 L950,550 M900,500 L900,600" stroke="rgba(0,195,255,0.3)" stroke-width="5" /></g><g><path d="M1500,400 C1500,350 1550,300 1600,300 C1650,300 1700,350 1700,400 L1700,600 L1500,600 Z" fill="rgba(0,195,255,0.15)" filter="url(%23glow)" /><circle cx="1600" cy="250" r="80" fill="rgba(0,195,255,0.15)" filter="url(%23glow)" /><path d="M1550,400 L1650,400 M1600,350 L1600,450" stroke="rgba(0,195,255,0.3)" stroke-width="5" /></g><g><rect x="700" y="800" width="100" height="200" rx="10" fill="rgba(0,195,255,0.1)" /><rect x="725" y="820" width="50" height="160" rx="5" fill="rgba(0,195,255,0.2)" /></g><g><circle cx="300" cy="300" r="5" fill="rgba(0,195,255,0.8)" filter="url(%23glow)"><animate attributeName="opacity" values="0.8;0.2;0.8" dur="3s" repeatCount="indefinite" /></circle><circle cx="1600" cy="800" r="5" fill="rgba(0,195,255,0.8)" filter="url(%23glow)"><animate attributeName="opacity" values="0.8;0.2;0.8" dur="4s" repeatCount="indefinite" /></circle><circle cx="1200" cy="200" r="5" fill="rgba(0,195,255,0.8)" filter="url(%23glow)"><animate attributeName="opacity" values="0.8;0.2;0.8" dur="5s" repeatCount="indefinite" /></circle><circle cx="800" cy="900" r="5" fill="rgba(0,195,255,0.8)" filter="url(%23glow)"><animate attributeName="opacity" values="0.8;0.2;0.8" dur="6s" repeatCount="indefinite" /></circle></g><g><line x1="0" y1="0" x2="1920" y2="1080" stroke="rgba(0,195,255,0.1)" stroke-width="1" /><line x1="1920" y1="0" x2="0" y2="1080" stroke="rgba(0,195,255,0.1)" stroke-width="1" /></g><g><rect x="0" y="0" width="100%" height="100%" fill="none" stroke="rgba(0,195,255,0.2)" stroke-width="4" stroke-dasharray="20,20" /></g><g><circle cx="960" cy="540" r="400" fill="none" stroke="rgba(0,195,255,0.1)" stroke-width="2" stroke-dasharray="10,10"><animate attributeName="stroke-dashoffset" from="0" to="100" dur="20s" repeatCount="indefinite" /></circle></g></svg>');
    background-size: cover;
    background-position: center;
    height: 100vh;
    display: flex;
    align-items: center;
    color: var(--light-text);
    text-align: center;
    margin-top: 0;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="none"/><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.3)"/></svg>');
    opacity: 0.3;
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: linear-gradient(to top, var(--light-bg), transparent);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.hero-content::before {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 228, 255, 0.1) 0%, transparent 70%);
    top: -100px;
    left: -100px;
    z-index: -1;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 0 0 20px var(--primary-color);
    letter-spacing: 3px;
    position: relative;
    display: inline-block;
    color: var(--primary-color);
    font-weight: 800;
    text-transform: uppercase;
    -webkit-text-stroke: 1px var(--primary-color);
}

.hero-content h1::after {
    content: '';
    position: absolute;
    width: 150px;
    height: 3px;
    background: var(--cyber-gradient);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: var(--neon-shadow);
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--light-text);
    letter-spacing: 2px;
    position: relative;
    display: inline-block;
    text-shadow: 0 0 10px rgba(0, 247, 255, 0.3);
}

.hero-content h2::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--cyber-gradient);
    bottom: -5px;
    left: 0;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 80%;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    position: relative;
    padding: 15px;
    border-left: 2px solid var(--primary-color);
    border-right: 2px solid var(--primary-color);
    background: rgba(0, 247, 255, 0.05);
    box-shadow: 0 0 20px rgba(0, 247, 255, 0.1);
}

.cta-buttons {
    position: relative;
}

.cta-buttons::before {
    content: '';
    position: absolute;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 228, 255, 0.1) 0%, transparent 70%);
    bottom: -50px;
    right: -50px;
    z-index: -1;
}

.cta-buttons .btn {
    margin: 0 10px;
}

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

/* 服务部分样式 */
.services {
    background-color: var(--light-bg);
    position: relative;
    overflow: hidden;
}

.services::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(circle, rgba(0, 228, 255, 0.03) 0%, transparent 70%);
    z-index: 0;
}

.services .container {
    position: relative;
    z-index: 1;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: rgba(20, 52, 86, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 5px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--cyber-gradient);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 15px;
    height: 15px;
    background: var(--primary-color);
    box-shadow: var(--neon-shadow);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 20px rgba(0, 247, 255, 0.2);
    border-color: var(--primary-color);
}

.service-card:hover::before {
    transform: translateX(0);
}

.service-card:hover::after {
    background: var(--accent-color);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
    text-shadow: var(--neon-shadow);
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    color: var(--accent-color);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    position: relative;
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.service-card h3::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--cyber-gradient);
    bottom: -5px;
    left: 0;
    transition: width 0.5s ease;
}

.service-card:hover h3::after {
    width: 100%;
}

.service-card p {
    color: var(--light-text);
    opacity: 0.8;
    transition: all 0.5s ease;
    position: relative;
    z-index: 1;
}

.service-card:hover p {
    opacity: 1;
}

.service-card .tech-dots {
    position: absolute;
    bottom: 10px;
    right: 10px;
    display: flex;
}

.service-card .tech-dots span {
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    margin: 0 2px;
    border-radius: 50%;
    opacity: 0.5;
}

.service-card:hover .tech-dots span {
    animation: blink 1.5s infinite alternate;
}

.service-card:hover .tech-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.service-card:hover .tech-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes blink {
    0% {
        opacity: 0.2;
    }
    100% {
        opacity: 1;
    }
}

/* 关于我们样式 */
.about {
    position: relative;
    overflow: hidden;
}

.about::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 228, 255, 0.05) 0%, transparent 70%);
    top: -250px;
    right: -250px;
    z-index: -1;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.5s ease;
}

.about-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 168, 255, 0.2) 0%, transparent 100%);
    z-index: 1;
}

.about-image::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    bottom: 0;
    left: 0;
    z-index: 2;
}

.about-image svg {
    display: block;
    width: 100%;
    filter: drop-shadow(0 10px 20px rgba(0, 168, 255, 0.2));
    transition: all 0.5s ease;
}

.about-image:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 168, 255, 0.15);
}

.about-text {
    position: relative;
}

.about-text::before {
    content: '';
    position: absolute;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 228, 255, 0.05) 0%, transparent 70%);
    top: -50px;
    left: -50px;
    z-index: -1;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.about-text h3::after {
    content: '';
    position: absolute;
    width: 50%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), transparent);
    bottom: -5px;
    left: 0;
    transition: width 0.3s ease;
}

.about-text p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-text ul {
    list-style: none;
    margin-bottom: 30px;
}

.about-text ul li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    transition: transform 0.3s ease;
    padding-left: 10px;
    position: relative;
}

.about-text ul li::before {
    content: '';
    position: absolute;
    width: 3px;
    height: 0;
    background: var(--accent-color);
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    transition: height 0.3s ease;
}

.about-text ul li:hover {
    transform: translateX(5px);
}

.about-text ul li:hover::before {
    height: 80%;
}

.about-text ul li i {
    color: var(--accent-color);
    margin-right: 10px;
    font-size: 1.2rem;
    text-shadow: 0 0 5px rgba(0, 228, 255, 0.3);
}

/* 专业领域样式 */
.expertise {
    background-color: var(--dark-bg);
    color: var(--light-text);
    position: relative;
    overflow: hidden;
}

.expertise::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="none"/><path d="M0,0 L100,100 M0,100 L100,0" stroke="rgba(0,228,255,0.03)" stroke-width="1"/></svg>');
    opacity: 0.5;
}

.expertise .section-header h2 {
    color: var(--light-text);
}

.expertise .section-header p {
    color: var(--light-text);
    opacity: 0.8;
}

.expertise-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    position: relative;
}

.expertise-item {
    background: rgba(20, 52, 86, 0.7);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 4px;
    padding: 30px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 15px 100%, 0 calc(100% - 15px));
}

.expertise-item::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 5px;
    background: var(--cyber-gradient);
    transform: translateX(100%);
    transition: transform 0.5s ease;
}

.expertise-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 15px;
    height: 15px;
    background: var(--primary-color);
    box-shadow: var(--neon-shadow);
    transition: all 0.3s ease;
}

.expertise-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 20px rgba(0, 247, 255, 0.2);
    border-color: var(--primary-color);
}

.expertise-item:hover::before {
    transform: translateX(0);
}

.expertise-item:hover::after {
    background: var(--accent-color);
}

.expertise-item h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 15px;
    text-shadow: 0 0 10px rgba(0, 247, 255, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-block;
}

.expertise-item h3:after {
    content: '';
    position: absolute;
    width: 40px;
    height: 2px;
    background: var(--cyber-gradient);
    bottom: 0;
    left: 0;
    box-shadow: var(--neon-shadow);
    transition: width 0.5s ease;
}

.expertise-item:hover h3:after {
    width: 100%;
}

.expertise-item p {
    color: var(--light-text);
    opacity: 0.8;
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.expertise-item:hover p {
    opacity: 1;
}

.expertise-item::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'%3E%3Cpath d='M0 0h40v40H0z' fill='none'/%3E%3Cpath d='M0 0h1v1H0zM39 0h1v1h-1zM0 39h1v1H0zM39 39h1v1h-1z' fill='%2300f7ff' fill-opacity='0.1'/%3E%3C/svg%3E");
    opacity: 0.3;
    top: 0;
    left: 0;
    z-index: -1;
}

.expertise-item .tech-border {
    position: absolute;
    bottom: 10px;
    right: 10px;
    width: 30px;
    height: 30px;
    border-right: 2px solid var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    opacity: 0.5;
    transition: all 0.5s ease;
}

.expertise-item:hover .tech-border {
    opacity: 1;
    box-shadow: 3px 3px 0 rgba(0, 247, 255, 0.3);
}

/* 联系我们样式 */
.contact {
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 228, 255, 0.05) 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    z-index: -1;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-item {
    display: flex;
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 228, 255, 0.1) 0%, transparent 100%);
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 168, 255, 0.1);
    border-color: rgba(0, 228, 255, 0.2);
}

.contact-item:hover::before {
    opacity: 1;
}

.contact-item i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-right: 20px;
    position: relative;
    z-index: 1;
    text-shadow: 0 0 10px rgba(0, 228, 255, 0.5);
}

.contact-item h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: var(--primary-color);
    position: relative;
}

.contact-item h3::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), transparent);
    bottom: -2px;
    left: 0;
    transition: width 0.3s ease;
}

.contact-item:hover h3::after {
    width: 50px;
}

.contact-form {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-form::before {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 228, 255, 0.05) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    z-index: -1;
}

.contact-form:hover {
    box-shadow: 0 15px 40px rgba(0, 168, 255, 0.1);
    border-color: rgba(0, 228, 255, 0.2);
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    font-size: 1rem;
    color: var(--text-color);
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 5px 15px rgba(0, 168, 255, 0.1);
    background: rgba(255, 255, 255, 0.1);
}

.form-group input:focus::placeholder,
.form-group textarea:focus::placeholder {
    opacity: 0.5;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

.form-group::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), transparent);
    bottom: 0;
    left: 0;
    transition: width 0.3s ease;
    opacity: 0;
}

.form-group:focus-within::after {
    width: 100%;
    opacity: 1;
}

/* 页脚样式 */
footer {
    background-color: #0c2038;
    color: var(--light-text);
    padding: 60px 0 20px;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="none"/><path d="M0,0 L100,100 M0,100 L100,0" stroke="rgba(0,228,255,0.03)" stroke-width="1"/></svg>');
    opacity: 0.3;
}

footer::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color), var(--primary-color));
    opacity: 0.8;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
    position: relative;
    z-index: 1;
}

.footer-logo h2 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--light-text);
    text-shadow: 0 0 10px rgba(0, 228, 255, 0.3);
    position: relative;
    display: inline-block;
}

.footer-logo h2::before {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    background-color: var(--accent-color);
    border-radius: 50%;
    left: -12px;
    top: 50%;
    transform: translateY(-50%);
    box-shadow: 0 0 10px var(--accent-color);
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h3,
.footer-social h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
    color: var(--accent-color);
    text-shadow: 0 0 5px rgba(0, 228, 255, 0.3);
}

.footer-links h3:after,
.footer-social h3:after {
    content: '';
    position: absolute;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), transparent);
    bottom: 0;
    left: 0;
    box-shadow: 0 0 5px rgba(0, 228, 255, 0.3);
}

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

.footer-links ul li {
    margin-bottom: 10px;
    transition: transform 0.3s ease;
    position: relative;
}

.footer-links ul li::before {
    content: '';
    position: absolute;
    width: 5px;
    height: 1px;
    background-color: var(--accent-color);
    left: -10px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.footer-links ul li:hover {
    transform: translateX(5px);
}

.footer-links ul li:hover::before {
    opacity: 1;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding: 2px 0;
}

.footer-links ul li a:hover {
    color: var(--accent-color);
    text-shadow: 0 0 5px rgba(0, 228, 255, 0.3);
}

.social-icons {
    display: flex;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    margin-right: 15px;
    color: var(--light-text);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.social-icons a::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0, 228, 255, 0.3) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.social-icons a:hover {
    background-color: rgba(0, 168, 255, 0.2);
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 5px 15px rgba(0, 168, 255, 0.2);
}

.social-icons a:hover::before {
    opacity: 0.5;
}

.social-icons a i {
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.social-icons a:hover i {
    text-shadow: 0 0 10px rgba(0, 228, 255, 0.5);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    z-index: 1;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.icp-link {
    margin-top: 10px;
}

.icp-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.85rem;
    padding: 5px 10px;
    border: 1px solid var(--primary-color);
    border-radius: 4px;
    background: rgba(0, 247, 255, 0.05);
    transition: all 0.3s ease;
    letter-spacing: 1px;
    position: relative;
    display: inline-block;
}

.icp-link a:hover {
    background: rgba(0, 247, 255, 0.1);
    box-shadow: 0 0 10px rgba(0, 247, 255, 0.3);
    transform: translateY(-2px);
}

.icp-link a::before {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    left: 3px;
    top: 50%;
    transform: translateY(-50%);
}

/* 动画效果 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* 响应式设计 */
@media screen and (max-width: 992px) {
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: 2;
    }
    
    .about-text {
        order: 1;
    }
}

@media screen and (max-width: 768px) {
    nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content h2 {
        font-size: 1.5rem;
    }
    
    section {
        padding: 60px 0;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
}