:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
    --text-color: #2c3e50;
    --light-bg: #f8f9fa;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background: linear-gradient(135deg, #f6f8f9 0%, #e5ebee 100%);
}

.hero-content {
    z-index: 2;
}

.hero-logo {
    width: 200px;
    height: 200px;
    margin-bottom: 2rem;
    animation: float 6s ease-in-out infinite;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    line-height: 1.4;
}

.scroll-btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    transition: transform 0.3s ease;
}

.scroll-btn:hover {
    transform: translateY(-3px);
}

/* About Section */
.section {
    padding: 100px 0;
}

.section-light {
    background: var(--light-bg);
}

.section-dark {
    background: var(--primary-color);
    color: white;
}

.grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    align-items: center;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--accent-color);
}

.image-wrapper {
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.image-wrapper img {
    width: 100%;
    height: auto;
    transition: transform 0.5s ease;
}

.image-wrapper:hover img {
    transform: scale(1.05);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-card img {
    width: 100%;
    border-radius: 5px;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
}

/* Contact Section */
.contact {
    text-align: center;
    background: linear-gradient(135deg, #e0e6e9 0%, #f2f6f8 100%);
}

.qr-code {
    max-width: 200px;
    margin: 2rem auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer a {
    color: white;
    text-decoration: none;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .grid, .services-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .section {
        padding: 60px 0;
    }
}

.login-btn {
    position: absolute;
    top: 20px; /* 根据需要调整位置 */
    right: 20px; /* 根据需要调整位置 */
    padding: 10px 20px;
    background-color: #007bff; /* 按钮背景色 */
    color: white; /* 按钮文字颜色 */
    border-radius: 5px; /* 圆角 */
    text-decoration: none; /* 去掉下划线 */
    font-weight: bold; /* 加粗文字 */
}