/* 全局重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础body样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

/* 通用容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 主要内容区域样式 */
main {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* ==================== HEADER 样式 ==================== */
header {
    background-color: #fff;
    padding: 20px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    margin-bottom: 0;
}

header h1 {
    color: #2c3e50;
    margin: 0;
    font-size: 24px;
    font-weight: 700;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header-links {
    display: flex;
    gap: 20px;
}

.header-links a {
    color: #4a5568;
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    transition: color 0.2s ease;
    padding: 4px 8px;
    border-radius: 4px;
}

.header-links a:hover {
    color: #2d3748;
    text-decoration: none;
    background-color: rgba(74, 85, 104, 0.1);
}

/* ==================== FOOTER 样式 ==================== */
/* ICP备案信息 */
.icp-footer {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    padding: 1.5rem 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.icp-footer p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin: 0 0 1rem 0;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 24px;
}

.icp-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.icp-info a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s ease;
    cursor: pointer;
}

.icp-info a:hover {
    color: #fff;
}

/* 公安备案区域样式 */
.police-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.police-icon {
    height: 16px;
    width: auto;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.police-badge:hover .police-icon {
    opacity: 1;
}

.police-link {
    color: rgba(255, 255, 255, 0.7) !important;
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

.police-link:hover {
    color: #fff !important;
}

.icp-info span.icp-link {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

.icp-separator {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .icp-info {
        flex-direction: column;
        gap: 0.5rem;
    }

    .icp-separator {
        display: none;
    }

    .police-badge {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .icp-footer p {
        font-size: 0.85rem;
        padding: 0 20px;
        margin-bottom: 0.75rem;
    }
}

@media (max-width: 480px) {
    .icp-footer {
        padding: 1rem 0;
    }

    .icp-footer p {
        font-size: 0.8rem;
        padding: 0 16px;
        margin-bottom: 0.5rem;
    }

    .icp-info {
        padding: 0 16px;
    }
}