/* 全局样式 */
body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    color: #333;
}

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

/* 头部样式 */
header {
    text-align: center;
    padding: 40px 0;
    background-color: #fff;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header h1 {
    margin: 0;
    color: #2c3e50;
    font-size: 2.5em;
}

header p {
    color: #7f8c8d;
    margin-top: 10px;
}

.dev-note {
    background-color: #fff3cd;
    color: #856404;
    padding: 8px 16px;
    border-radius: 4px;
    margin-top: 20px;
    font-size: 0.9em;
}

/* 搜索区域样式 */
.search-section {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.search-container {
    display: flex;
    gap: 10px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

input[type="text"],
input[type="number"] {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    flex: 1;
    min-width: 200px;
}

button {
    padding: 12px 24px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #2980b9;
}

/* 结果区域样式 */
.result-section {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

.card {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-content {
    padding: 20px;
}

.card-title {
    margin: 0 0 10px 0;
    color: #2c3e50;
}

.card-description {
    color: #7f8c8d;
    margin-bottom: 15px;
    line-height: 1.5;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    color: #95a5a6;
    font-size: 0.9em;
    margin-bottom: 15px;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    background-color: #e0f7fa;
    color: #00838f;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.9em;
}

/* 加载和错误状态样式 */
.loading {
    text-align: center;
    padding: 40px;
    color: #7f8c8d;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error {
    background-color: #fee;
    color: #e74c3c;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    margin: 20px 0;
}

.error p {
    margin: 10px 0;
}

.error p:first-child {
    font-weight: bold;
}

.no-results {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    color: #7f8c8d;
    margin: 20px 0;
}

.no-results ul {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.no-results li {
    margin: 10px 0;
    color: #34495e;
}

/* 卡片加载状态 */
.card.loading {
    position: relative;
    pointer-events: none;
}

.card.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.card.loading::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 2;
}

/* 结果网格布局 */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

/* 页脚样式 */
footer {
    text-align: center;
    padding: 20px;
    color: #7f8c8d;
    margin-top: 40px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header {
        padding: 20px 0;
    }
    
    .search-container {
        flex-direction: column;
    }
    
    input[type="text"],
    input[type="number"],
    button {
        width: 100%;
    }
    
    .result-section {
        grid-template-columns: 1fr;
    }
}