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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.8;
    color: #333;
    text-align: justify;
}

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

/* 导航栏样式 */
header {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    position: relative;
    display: flex;
    align-items: center;
    color: rgba(51, 51, 51, 0.9);
    text-shadow: 0 1px 2px rgba(30, 136, 229, 0.4);
    padding: 0.5rem;
    padding-left: 4rem;
    margin-right: 1rem;
}

.logo::before {
    content: '';
    position: absolute;
    left: 1rem;
    width: 2rem;
    height: 2rem;
    background: linear-gradient(135deg, #1e88e5 0%, #1565c0 100%);
    border-radius: 0.3rem;
    transform: rotate(45deg);
    animation: logoRotate 6s infinite linear;
    box-shadow: 0 2px 10px rgba(30,136,229,0.3);
}

.logo::after {
    content: '';
    position: absolute;
    left: 1.3rem;
    width: 1.6rem;
    height: 1.6rem;
    background: linear-gradient(135deg, #64b5f6 0%, #42a5f5 100%);
    border-radius: 0.2rem;
    transform: rotate(45deg);
    animation: logoRotateReverse 4s infinite linear;
}

@keyframes logoRotate {
    from {
        transform: rotate(45deg);
    }
    to {
        transform: rotate(405deg);
    }
}

@keyframes logoRotateReverse {
    from {
        transform: rotate(45deg);
    }
    to {
        transform: rotate(-315deg);
    }
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #1e88e5;
}

/* 首页英雄区样式 */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, #1e88e5 0%, #1565c0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding-top: 60px;
    position: relative;
    overflow: hidden;
}

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

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1000px;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 3.2rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
    animation: fadeInDown 1s ease-out;
    white-space: nowrap;
}

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 600;
    animation: fadeInUp 1s ease-out 0.3s;
    animation-fill-mode: both;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.6s;
    animation-fill-mode: both;
}

.cta-button {
    display: inline-block;
    padding: 1.2rem 2.5rem;
    background-color: rgba(255, 255, 255, 0.9);
    color: #1e88e5;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    animation: fadeInUp 1s ease-out 0.9s;
    animation-fill-mode: both;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.cta-button:hover {
    transform: translateY(-3px);
    background-color: #fff;
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

@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);
    }
}

.cta-button:hover {
    transform: translateY(-3px);
}

/* 关于我们样式 */
.about {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8eaf6 100%);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.about-item {
    background: rgba(255,255,255,0.9);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    text-align: center;
    animation: fadeInUp 1s ease-out;
    animation-fill-mode: both;
}

.about-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(30,136,229,0.15);
}

.about-item i {
    font-size: 2.5rem;
    color: #1e88e5;
    margin-bottom: 1.5rem;
    display: inline-block;
}

.about-item h3 {
    margin-bottom: 1rem;
    color: #333;
    font-size: 1.5rem;
}

.about-item p {
    color: #666;
    line-height: 1.6;
}

.icon-mission::before { content: '🎯'; }
.icon-tech::before { content: '💡'; }
.icon-service::before { content: '🤝'; }
.icon-innovation::before { content: '🚀'; }

/* 业务范围样式 */
.services {
    padding: 6rem 0;
    background: linear-gradient(to bottom, #fff 0%, #f8f9fa 100%);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-item {
    text-align: center;
    padding: 2.5rem 2rem;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 25px rgba(30,136,229,0.15);
    border-color: rgba(30,136,229,0.1);
}

.service-item i {
    font-size: 2.5rem;
    color: #1e88e5;
    margin-bottom: 1rem;
}

/* 团队优势样式 */
.advantages {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8eaf6 100%);
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-item {
    text-align: center;
    padding: 2.5rem;
    background: rgba(255,255,255,0.9);
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

/* 联系我们样式 */
.contact {
    padding: 6rem 0;
    background: linear-gradient(to bottom, #fff 0%, #f8f9fa 100%);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.info-item {
    text-align: center;
    padding: 2.5rem;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.info-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(30,136,229,0.15);
    border-color: rgba(30,136,229,0.1);
}

/* 页脚样式 */
footer {
    background-color: #333;
    color: #fff;
    padding: 2rem 0;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        padding: 1rem;
    }

    .nav-links {
        margin-top: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-links li {
        margin: 0.5rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .service-grid,
    .advantage-grid,
    .contact-info {
        grid-template-columns: 1fr;
    }
}

/* 通用标题样式 */
h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #333;
}

/* 图标样式 */
.icon-web::before { content: '🌐'; }
.icon-app::before { content: '📱'; }
.icon-cloud::before { content: '☁️'; }
.icon-ai::before { content: '🤖'; }
.icon-robot::before { content: '🤖'; }
.icon-inventory::before { content: '📦'; }
.icon-data::before { content: '📊'; }
.icon-algorithm::before { content: '🧮'; }