:root {
    --primary-color: #1a4f8c;
    --secondary-color: #3498db;
    --accent-color: #f39c12;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    color: #333;
    background-color: #f9f9f9;
    padding-top: 76px;
}

.navbar {
    background-color: var(--primary-color) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand, .nav-link {
    color: white !important;
}

.nav-link:hover {
    color: var(--accent-color) !important;
}

.hero-section {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('https://zhanggexing.oss-cn-shenzhen.aliyuncs.com/danzhandian/images/beijing.webp');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 100px 0;
}

.section-title {
    position: relative;
    margin-bottom: 30px;
    padding-bottom: 15px;
    text-align: center;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--secondary-color);
}

.feature-box {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
    height: 100%;
}

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

.feature-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.property-card {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
    margin-bottom: 20px;
    background: white;
}

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

.property-img {
    height: 200px;
    object-fit: cover;
    width: 100%;
}

.property-price {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.contact-info {
    background-color: var(--primary-color);
    color: white;
    padding: 30px;
    border-radius: 8px;
}

.date-display {
    background-color: var(--accent-color);
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    display: inline-block;
    margin-bottom: 20px;
}

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

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

footer {
    background-color: var(--dark-color);
    color: white;
    padding: 40px 0 80px 0;
}

.back-to-top {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

/* 手机拨号条 */
.call-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    padding: 15px 0;
    text-align: center;
    z-index: 1000;
    display: none;
}

.call-bar a {
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: bold;
}

.call-bar a:hover {
    color: var(--accent-color);
}

/* 地图图片样式 */
.map-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 8px;
}

/* 楼盘简介样式 */
.intro-header {
    background-color: var(--primary-color);
    color: white;
    padding: 15px 20px;
    border-radius: 8px 8px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.intro-content {
    background: white;
    padding: 25px;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.intro-list {
    list-style-type: none;
    padding: 0;
}

.intro-list li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.intro-list li:last-child {
    border-bottom: none;
}

.intro-list strong {
    color: var(--primary-color);
    margin-right: 10px;
}

@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }
    
    .call-bar {
        display: block;
    }
    
    footer {
        padding-bottom: 80px;
    }
    
    .map-image {
        height: 300px;
    }
    
    .intro-header {
        flex-direction: column;
        text-align: center;
    }
    
    .update-date {
        margin-top: 10px;
    }
}