body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: url('imges/bg-login.jpg') no-repeat center center fixed;
    background-size: cover;
    color: #333;
}

/* 响应式设计 - 移动端 */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        padding: 1rem;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
        padding: 0;
    }
    
    nav ul li {
        margin: 0.5rem 0;
    }
    
    .hero {
        padding: 3rem 1rem;
        margin: 1rem;
    }
    
    .features {
        padding: 2rem 1rem;
        margin: 1rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .logo {
        margin-bottom: 1rem;
    }
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #48BB7A;
}

.logo::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 24px;
    background-image: url('imges/短信.png');
    background-size: contain;
    background-repeat: no-repeat;
    margin-right: 8px;
}

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

nav ul li {
    margin-left: 1.5rem;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
}

nav ul li a:hover {
    color: #48BB7A;
}

.hero {
    text-align: center;
    padding: 5rem 2rem;
    /* 调整透明度以更好显示背景图 */
    background-color: rgba(255, 255, 255, 0.35);
    margin: 2rem;
    border-radius: 8px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #48BB7A;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: #48BB7A;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
}

.cta-button:hover {
    background-color: #3a9e65;
}

.features {
    padding: 3rem 2rem;
    /* 调整透明度以更好显示背景图 */
    background-color: rgba(255, 255, 255, 0.35);
    margin: 2rem;
    border-radius: 8px;
}

.features h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #48BB7A;
}

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

.feature-item {
    text-align: center;
    padding: 1.5rem;
    /* 调整透明度以更好显示背景图 */
    background-color: rgba(255, 255, 255, 0.4);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.feature-item img {
    max-width: 100%;
    width: 80px;
    height: 80px;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.feature-details {
    padding: 3rem 2rem;
    background-color: rgba(255, 255, 255, 0.3);
    margin: 2rem;
    border-radius: 8px;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 1.5rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.feature img {
    max-width: 200px;
    width: 80px;
    height: 80px;
    border-radius: 4px;
}

footer {
    text-align: center;
    padding: 1rem;
    background-color: rgba(255, 255, 255, 0.3);
    margin-top: 2rem;
}

/* 导航栏QQ客服样式 */
.qq-service-nav {
    display: flex;
    align-items: center;
    margin-left: 1.5rem;
}

.qq-icon-nav {
    width: 16px;
    height: 16px;
    margin-right: 4px;
}

.qq-number-nav {
    font-size: 0.9rem;
    color: #333;
}

/* 页脚QQ客服样式 - 保留 */
.qq-service {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 1rem;
}

.qq-icon {
    width: 24px;
    height: 24px;
    margin-right: 8px;
}

.qq-number {
    font-size: 1rem;
    color: #48BB7A;
}

@media (max-width: 768px) {
    .feature {
        flex-direction: column;
        text-align: center;
    }

    .feature img {
        margin-bottom: 1rem;
    }
}