:root {
    --primary-color: #1a1a2e;
    --secondary-color: #4a90e2;
    --text-color: #ffffff;
    --background-color: #0a0a1a;
    --card-bg: rgba(26, 26, 46, 0.8);
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Noto Sans SC', sans-serif;
    background: var(--background-color);
    color: var(--text-color);
    background-image: url('../assets/stars-bg.svg');
    background-attachment: fixed;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo img {
    height: 40px;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    margin-left: 2rem;
    transition: color 0.3s ease;
}

.login-btn {
    background: var(--secondary-color);
    padding: 0.5rem 1.5rem;
    border-radius: 4px;
}

/* 英雄区域样式 */
.hero-section {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

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

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.3s;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 1s ease-out 0.6s;
}

.primary-btn, .secondary-btn {
    padding: 1rem 2rem;
    border-radius: 4px;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.primary-btn {
    background: var(--secondary-color);
    color: white;
}

.secondary-btn {
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
}

/* 核心优势部分 */
.features-section {
    padding: 6rem 2rem;
    background: var(--card-bg);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

/* 认证流程部分 */
.process-section {
    padding: 6rem 2rem;
}

.process-steps {
    display: flex;
    justify-content: space-around;
    max-width: 1200px;
    margin: 0 auto;
    gap: 2rem;
}

.process-step {
    text-align: center;
    flex: 1;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
}

/* 服务优势部分 */
.services-section {
    padding: 6rem 2rem;
    background: var(--card-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
}

/* 微信公众号部分 */
.wechat-section {
    padding: 4rem 2rem;
}

.wechat-content {
    max-width: 400px;
    margin: 0 auto;
    text-align: center;
}

.qr-code img {
    width: 200px;
    height: 200px;
    margin-bottom: 1rem;
}

/* 更新页脚样式 */
footer {
    background: var(--card-bg);
    padding: 2rem 0;
    margin-top: 4rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.footer-left {
    order: 2;
}

.footer-right {
    order: 1;
    margin-bottom: 0.5rem;
}

.footer-copyright {
    order: 3;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    width: 100%;
}

.footer-left p,
.footer-copyright p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin: 0;
}

.footer-right a {
    color: var(--text-color);
    text-decoration: none;
    margin: 0 1rem;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

.footer-right a:hover {
    color: var(--secondary-color);
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .process-steps {
        flex-direction: column;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .nav-links {
        display: none;
    }
    .footer-right a {
        margin: 0 0.5rem;
        font-size: 0.9rem;
    }
}

/* 添加备案号链接样式 */
.beian-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.beian-link:hover {
    color: var(--secondary-color);
}