/* 通用区块样式 */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.2rem;
    color: #cccccc;
}

/* 关于我们 */
.about {
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 100%);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 80px;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #00d4ff;
}

.about-text p {
    font-size: 1.1rem;
    color: #cccccc;
    margin-bottom: 40px;
    line-height: 1.8;
}

.stats {
    display: flex;
    gap: 40px;
}

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

.stat-item h4 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #00d4ff;
    margin-bottom: 10px;
}

.stat-item p {
    color: #cccccc;
    font-size: 1rem;
}

.about-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-cube {
    width: 200px;
    height: 200px;
    position: relative;
    transform-style: preserve-3d;
    animation: rotateCube 10s infinite linear;
}

.cube-face {
    position: absolute;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(0, 153, 204, 0.1));
    border: 1px solid rgba(0, 212, 255, 0.3);
}

.cube-face.front { transform: rotateY(0deg) translateZ(100px); }
.cube-face.back { transform: rotateY(180deg) translateZ(100px); }
.cube-face.right { transform: rotateY(90deg) translateZ(100px); }
.cube-face.left { transform: rotateY(-90deg) translateZ(100px); }
.cube-face.top { transform: rotateX(90deg) translateZ(100px); }
.cube-face.bottom { transform: rotateX(-90deg) translateZ(100px); }

@keyframes rotateCube {
    0% { transform: rotateX(0deg) rotateY(0deg); }
    100% { transform: rotateX(360deg) rotateY(360deg); }
}

/* 服务 */
.services {
    background: #0a0a0a;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.service-card {
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.8), rgba(22, 33, 62, 0.8));
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: #00d4ff;
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
}

.service-icon i {
    font-size: 2rem;
    color: #ffffff;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #ffffff;
}

.service-card p {
    color: #cccccc;
    margin-bottom: 30px;
    line-height: 1.6;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.service-features span {
    background: rgba(0, 212, 255, 0.1);
    color: #00d4ff;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(0, 212, 255, 0.3);
}