/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0a84ff;
    --secondary-color: #5e5ce6;
    --dark-bg: #0d0d1a;
    --darker-bg: #080811;
    --light-text: #f0f0f0;
    --gray-text: #a0a0c0;
    --card-bg: rgba(20, 20, 40, 0.7);
    --border-color: rgba(100, 100, 255, 0.2);
    --success-color: #30d158;
    --warning-color: #ffd60a;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: var(--light-text);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.highlight {
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(10, 132, 255, 0.5);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 4px;
    font-family: 'Orbitron', sans-serif;
    font-weight: 500;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 4px 15px rgba(94, 92, 230, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(94, 92, 230, 0.6);
}

.btn-secondary {
    background-color: transparent;
    color: var(--light-text);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: rgba(10, 132, 255, 0.1);
    transform: translateY(-3px);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(13, 13, 26, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light-text);
}

.logo i {
    color: var(--primary-color);
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
}

.nav-menu li {
    margin-left: 40px;
}

.nav-menu a {
    color: var(--light-text);
    text-decoration: none;
    font-family: 'Orbitron', sans-serif;
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--light-text);
    font-size: 1.5rem;
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    background: linear-gradient(rgba(8, 8, 17, 0.9), rgba(13, 13, 26, 0.8)),
                url('https://images.unsplash.com/photo-1531297484001-80022131f5a1?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2020&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-overlay {
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-content {
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
}

.hero-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff, var(--primary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-subtitle {
    font-size: 1.4rem;
    color: var(--gray-text);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.particles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* 关于我们 */
.about-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.about-text {
    flex: 1;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 25px;
    color: var(--gray-text);
    line-height: 1.8;
}

.about-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.tech-demo {
    width: 100%;
    max-width: 500px;
    height: 400px;
    background-color: rgba(10, 10, 20, 0.7);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

/* 在现有CSS中添加以下代码 */

/* 在移动端隐藏科技演示 */
@media (max-width: 768px) {
    .tech-demo {
        display: none;
    }
    
    /* 可选：添加一个替代的占位符 */
    .about-image {
        display: none;
    }
}

.map-visualization {
    width: 100%;
    height: 100%;
    position: relative;
}

/* 版权信息样式 */
/* 版权信息样式 */
.copyright {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    width: 100%;
    color: var(--gray-text);
    font-size: 0.9rem;
}

.copyright-line {
    margin-bottom: 10px;
    color: var(--gray-text);
}

/* 备案信息容器 */
/* 备案信息基础样式 */
.beian-info {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.85rem;
    text-align: center;
}

/* 备案链接基础样式 */
.beian-link {
    color: var(--gray-text);
    text-decoration: none;
    transition: color 0.3s ease;
    white-space: nowrap; /* 防止文字换行 */
}

.beian-link:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* 桌面端分隔符样式 */
.desktop-separator {
    color: var(--gray-text);
    opacity: 0.6;
}

/* 公安备案容器样式 */
.police-beian-container {
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap; /* 防止换行 */
}

/* 图标样式 */
.beian-icon {
    vertical-align: middle;
    display: inline-block;
    flex-shrink: 0; /* 防止图标被压缩 */
}

/* PC端样式（默认） */
@media (min-width: 769px) {
    .beian-info {
        flex-wrap: nowrap; /* 强制不换行 */
    }
}

/* 移动端样式 */
@media (max-width: 768px) {
    .beian-info {
        flex-direction: column; /* 改为垂直排列 */
        gap: 5px;
    }
    
    /* 隐藏桌面端分隔符 */
    .desktop-separator {
        display: none;
    }
    
    /* 公安备案文字调整 */
    .police-beian-container {
        justify-content: center;
    }
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
    .beian-info {
        font-size: 0.85rem;
    }
    
    .beian-link {
        font-size: 0.85rem;
    }
    
    .beian-icon {
        width: 12px;
        height: 12px;
    }
}

.map-grid {
    position: absolute;
    width: 100%;
    height: 100%;
}

.grid-line {
    position: absolute;
    background-color: rgba(100, 100, 255, 0.1);
}

.grid-line:nth-child(1) {
    top: 0;
    left: 33.33%;
    width: 1px;
    height: 100%;
}

.grid-line:nth-child(2) {
    top: 0;
    left: 66.66%;
    width: 1px;
    height: 100%;
}

.grid-line:nth-child(3) {
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
}

.data-point {
    position: absolute;
    width: 12px;
    height: 12px;
    background-color: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--primary-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.3);
        opacity: 0.7;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.data-point:nth-child(2) {
    animation-delay: 0.5s;
    background-color: var(--secondary-color);
    box-shadow: 0 0 15px var(--secondary-color);
}

.data-point:nth-child(3) {
    animation-delay: 1s;
    background-color: var(--success-color);
    box-shadow: 0 0 15px var(--success-color);
}

.data-point:nth-child(4) {
    animation-delay: 1.5s;
    background-color: var(--warning-color);
    box-shadow: 0 0 15px var(--warning-color);
}

.pulse-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: ringPulse 3s infinite;
}

@keyframes ringPulse {
    0% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}

/* 核心特色 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 40px 30px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    z-index: 2;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(100, 100, 255, 0.5);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--light-text);
}

.feature-description {
    color: var(--gray-text);
    line-height: 1.6;
}

/* 联系我们 */
/* 调整联系版块样式 */
.contact-content {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    width: 100%;
    max-width: 800px;
}

.info-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 40px 30px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    z-index: 2;
}

.info-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(100, 100, 255, 0.5);
}

.info-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.info-card h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--light-text);
}

.info-card p {
    color: var(--gray-text);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 移除JavaScript中相关的表单处理代码 */
/* 在main.js文件中删除以下部分：
   1. 联系表单提交的事件监听器
   2. showFormMessage函数
   3. isValidEmail函数
*/

/* 响应式调整 */
@media (max-width: 768px) {
    .contact-info {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
}

/* 页脚 */
.footer {
    background-color: var(--darker-bg);
    padding: 60px 0 30px;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--light-text);
    margin-bottom: 20px;
}

.footer-logo i {
    color: var(--primary-color);
    margin-right: 10px;
    font-size: 2.2rem;
}

.footer-text {
    color: var(--gray-text);
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 600px;
}

.footer-social {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: rgba(20, 20, 40, 0.7);
    border-radius: 50%;
    color: var(--light-text);
    font-size: 1.3rem;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.footer-social a:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
}

.copyright {
    color: var(--gray-text);
    font-size: 0.9rem;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    width: 100%;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.8rem;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .contact-content {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background-color: var(--dark-bg);
        padding: 20px 0;
        transition: left 0.3s ease;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 15px 0;
        text-align: center;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
        margin-bottom: 15px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .feature-card, .info-card, .contact-form {
        padding: 25px 20px;
    }
}