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

body {
    font-family: "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* 导航栏样式 */
.navbar {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #1890ff;
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #1890ff;
}

.btn-primary {
    background: #1890ff;
    color: white !important;
    padding: 10px 20px;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.btn-primary:hover {
    background: #40a9ff;
}

/* 首页横幅样式 */
.hero {
    background: linear-gradient(135deg, #1890ff 0%, #36cfc9 100%);
    padding: 120px 0 80px;
    text-align: center;
    color: white;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: bold;
}

.hero p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        height: auto;
        padding: 20px;
    }

    .nav-links {
        flex-direction: column;
        gap: 15px;
        margin-top: 20px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 18px;
    }
}

/* 悬浮联系按钮样式 */
.float-contact {
    position: fixed !important; /* 使用!important确保样式不被覆盖 */
    right: 30px !important;
    bottom: 30px !important;
    left: auto !important; /* 确保不会被左对齐 */
    top: auto !important; /* 确保不会被顶部对齐 */
    z-index: 9999;
    width: auto !important; /* 确保宽度自适应内容 */
}

.float-btn {
    display: inline-flex !important; /* 修改为inline-flex */
    align-items: center;
    gap: 8px;
    background: #1890ff;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 24px;
    cursor: pointer;
    box-shadow: 0 2px 12px rgba(24, 144, 255, 0.3);
    transition: all 0.3s ease;
    white-space: nowrap; /* 防止文字换行 */
}

/* 弹出表单样式 */
.float-form {
    position: fixed !important;
    right: 30px !important;
    bottom: 100px !important;
    left: auto !important;
    width: 300px !important;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.15);
    display: none;
    animation: slideUp 0.3s ease;
}

/* 表单内容样式 */
.float-form-content {
    position: relative;
    padding: 20px;
    width: 100%;
}

/* 关闭按钮样式 */
.close-btn {
    position: absolute;
    right: 10px;
    top: 10px;
    font-size: 20px;
    color: #666;
    cursor: pointer;
    transition: color 0.3s;
    z-index: 1;
}

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

/* 响应式调整 */
@media (max-width: 768px) {
    .float-contact {
        right: 20px !important;
        bottom: 20px !important;
    }
    
    .float-form {
        right: 20px !important;
        bottom: 80px !important;
        width: 280px !important;
    }
}

/* 功能特色部分 */
.features {
    padding: 80px 0;
    background: #f8f9fa;
}

.features h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    padding: 0 20px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.feature-card i {
    font-size: 40px;
    color: #1890ff;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #333;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    margin: 10px 0;
    padding-left: 20px;
    position: relative;
}

.feature-list li:before {
    content: "•";
    color: #1890ff;
    position: absolute;
    left: 0;
}

/* 系统优势部分 */
.advantages {
    padding: 80px 0;
    background: white;
}

.advantages h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    padding: 0 20px;
}

.advantage-item {
    text-align: center;
    padding: 30px;
    border-radius: 10px;
    background: #f8f9fa;
    transition: transform 0.3s;
}

.advantage-item:hover {
    transform: translateY(-5px);
}

.advantage-item i {
    font-size: 48px;
    color: #1890ff;
    margin-bottom: 20px;
}

.advantage-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #333;
}

.advantage-number {
    font-size: 48px;
    font-weight: bold;
    color: #1890ff;
    margin: 20px 0;
}

.advantage-item p {
    color: #666;
    margin-bottom: 20px;
}

.advantage-details {
    list-style: none;
    padding: 0;
    text-align: left;
}

.advantage-details li {
    margin: 10px 0;
    padding-left: 20px;
    position: relative;
}

.advantage-details li:before {
    content: "✓";
    color: #1890ff;
    position: absolute;
    left: 0;
}

/* 联系我们部分 */
.contact {
    padding: 80px 0;
    background: #f8f9fa;
}

.contact h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    text-align: center;
}

.contact-item {
    padding: 20px;
}

.contact-item i {
    font-size: 36px;
    color: #1890ff;
    margin-bottom: 15px;
}

.contact-item p {
    color: #666;
    font-size: 16px;
}

/* 页脚样式 */
.footer {
    background: #001529;
    color: white;
    padding: 20px 0;
    text-align: center;
}

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

    .features h2, .advantages h2, .contact h2 {
        font-size: 28px;
    }

    .feature-card, .advantage-item {
        padding: 20px;
    }

    .advantage-number {
        font-size: 36px;
    }
}