/* Hero区域 */
.hero {
    background: linear-gradient(rgba(13, 27, 62, 0.85), rgba(26, 58, 143, 0.8)), 
                url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1770&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 180px 0 120px;
    text-align: center;
    margin-top: 70px;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-description {
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 产品展示 */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    color: var(--dark-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 3px;
    background-color: var(--secondary-color);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.section-title p {
    color: var(--text-light);
    max-width: 700px;
    margin: 20px auto 0;
}

/* 解决方案 */
.solutions {
    background-color: var(--light-color);
}

/* 关于我们 */
.about-text h3 {
    font-size: 28px;
    color: var(--dark-color);
    margin-bottom: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

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

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-text {
    color: var(--text-light);
    font-size: 14px;
}

.placeholder-image {
    height: 400px;
    background-color: #f5f5f5;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 18px;
}

/* 联系我们 */
.contact {
    background-color: var(--light-color);
}

.contact-info h3 {
    font-size: 24px;
    color: var(--dark-color);
    margin-bottom: 20px;
}

.contact-list {
    list-style: none;
    margin-top: 30px;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
}

.contact-list i {
    color: var(--secondary-color);
    font-size: 20px;
    margin-right: 15px;
    margin-top: 4px;
}

/* 公司图片样式 */
.company-bg {
    background-image: url('../images/company-image.jpg');
    background-size: cover;
    background-position: center;
    border-radius: 12px;
    height: 400px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}