/* 基础样式 */
:root {
    --primary-color: #8B4513;  /* SaddleBrown - deep brown */
    --secondary-color: #5D4037; /* Brown 700 - darker brown */
    --accent-color: #A1887F;   /* Brown 300 - lighter brown accent */
    --light-color: #EFEBE9;    /* Brown 50 - very light beige */
    --dark-color: #3E2723;     /* Brown 900 - very dark brown */
    --shadow: 0 4px 6px rgba(62, 39, 35, 0.2);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #F5F5F5;  /* A slightly warmer background */
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: var(--primary-color);
}

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 8px 15px;
    border-radius: 4px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 14px;
}

.btn:hover {
    background-color: #6D4C41;  /* Brown 600 - slightly lighter than primary */
    transform: translateY(-2px);
}

/* 头部样式 */
header {
    background-color: var(--primary-color);
    color: white;
    padding: 20px 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

header h1 {
    margin-bottom: 15px;
    text-align: center;
    font-size: 2.2rem;
}

.search-box {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
}

.search-box input {
    flex: 1;
    padding: 10px 15px;
    border: none;
    border-radius: 4px 0 0 4px;
    font-size: 16px;
}

.search-box button {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 0 15px;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: var(--transition);
}

.search-box button:hover {
    background-color: #1a252f;
}

/* 筛选器样式 */
.filters {
    margin: 30px 0;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.filter-group {
    margin-bottom: 15px;
}

.filter-group:last-child {
    margin-bottom: 0;
}

.filter-group h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
    color: var(--secondary-color);
}

.filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-btn {
    background-color: #e0e0e0;
    border: none;
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
}

.filter-btn:hover {
    background-color: #d0d0d0;
}

.filter-btn.active {
    background-color: var(--primary-color);
    color: white;
}

/* 博物馆卡片样式 */
.museums-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.museum-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.museum-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.museum-image {
    height: 200px;
    overflow: hidden;
}

.museum-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.museum-card:hover .museum-image img {
    transform: scale(1.05);
}

.museum-info {
    padding: 20px;
}

.museum-info h3 {
    margin-bottom: 10px;
    font-size: 1.4rem;
    color: var(--secondary-color);
}

.location {
    color: #7f8c8d;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.location i {
    margin-right: 5px;
}

.description {
    margin-bottom: 15px;
    font-size: 0.95rem;
    color: #555;
}

.museum-links {
    display: flex;
    gap: 10px;
}

/* 页脚样式 */
footer {
    background-color: var(--secondary-color);
    color: white;
    padding: 20px 0;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .museums-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.5rem;
    }
    
    .museums-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-options {
        flex-direction: column;
        gap: 5px;
    }
    
    .filter-btn {
        width: 100%;
        text-align: left;
    }
}