/* 全局样式 */
body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(45deg, #0a0a0a 0%, #141e30 100%);
    color: #e0f7fa;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    animation: fadeIn 1s ease-in-out;
    overflow-x: hidden;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* 标题样式 */
h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 48px;
    font-weight: 600;
    margin-bottom: 80px;
    text-shadow: 0 0 20px #00e5ff, 0 0 30px #00e5ff;
    letter-spacing: 3px;
    animation: glow 1.5s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 20px #00e5ff, 0 0 30px #00e5ff;
    }
    to {
        text-shadow: 0 0 30px #00e5ff, 0 0 40px #00e5ff;
    }
}

/* 链接容器样式 */
.link-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1400px;
    width: 90%;
    margin-bottom: 50px;
}

/* 链接样式 */
a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(0, 229, 255, 0.3);
    border-radius: 15px;
    padding: 30px;
    text-decoration: none;
    color: #e0f7fa;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.1);
    position: relative;
    overflow: hidden;
    min-height: 50px;
}

a:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

a:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-8px);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
    border-color: #00e5ff;
}

a:hover:before {
    left: 100%;
}

/* 链接标题样式 */
.link-title {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 15px;
    text-align: center;
}

/* 日期样式 */
.date {
    font-size: 14px;
    color: #90a4ae;
    text-align: center;
}

/* 页脚样式 */
footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    text-align: center;
    padding: 10px 0;
    font-size: 12px;
    color: #90a4ae;
}

/* 媒体查询，适配小屏幕 */
@media (max-width: 768px) {
    h2 {
        font-size: 32px;
        margin-bottom: 40px;
    }

    .link-container {
        grid-template-columns: 1fr;
    }
}

/* 备案号链接样式 */
.beian-link {
    display: inline;
    background: none;
    border: none;
    padding: 0;
    box-shadow: none;
    position: static;
    min-height: auto;
}

.beian-link:before {
    display: none;
}

.beian-link:hover {
    background: none;
    transform: none;
    box-shadow: none;
    border-color: transparent;
}