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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

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

header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.filter-section {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    margin-bottom: 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: flex-end;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 600;
}

.filter-group select,
.filter-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: #667eea;
}

.search-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.hotel-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.hotel-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s, box-shadow 0.3s;
}

.hotel-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.hotel-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background: #f0f0f0;
}

.hotel-info {
    padding: 20px;
}

.hotel-name {
    font-size: 1.4em;
    color: #333;
    margin-bottom: 10px;
    font-weight: 700;
}

.hotel-details {
    color: #666;
    margin-bottom: 8px;
    font-size: 0.95em;
}

.hotel-details strong {
    color: #333;
}

.hotel-price {
    font-size: 1.6em;
    color: #e74c3c;
    font-weight: 700;
    margin: 15px 0;
}

.hotel-price::before {
    content: "¥";
    font-size: 0.7em;
}

.hotel-remark {
    background: #f8f9fa;
    padding: 10px;
    border-radius: 6px;
    color: #555;
    font-size: 0.9em;
    margin-top: 10px;
}

.hotel-dates {
    color: #888;
    font-size: 0.85em;
    margin-top: 10px;
}

.no-hotels {
    text-align: center;
    color: white;
    font-size: 1.2em;
    padding: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
}

@media (max-width: 768px) {
    .hotel-list {
        grid-template-columns: 1fr;
    }
    
    header h1 {
        font-size: 1.8em;
    }
}