/* 全局样式 */
body {
    background-color: #f8f9fa;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* 导航栏样式 */
.navbar-brand i {
    margin-right: 8px;
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

/* 卡片样式 */
.card {
    border: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1) !important;
}

.card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* 表单样式 */
.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* 按钮样式 */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    transition: opacity 0.2s;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-outline-primary {
    border-color: #667eea;
    color: #667eea;
}

.btn-outline-primary:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: transparent;
}

/* 分页样式 */
.pagination .page-link {
    color: #667eea;
    border-radius: 20px;
    margin: 0 5px;
    border: none;
}

.pagination .page-link:hover {
    background-color: #667eea;
    color: white;
}

.pagination .active .page-link {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
}

/* 微博图片样式 */
.card img {
    cursor: pointer;
    transition: opacity 0.2s;
}

.card img:hover {
    opacity: 0.9;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .card-body {
        padding: 1rem;
    }
}

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

.card {
    animation: fadeIn 0.5s ease-out;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}