/* 自定义动画效果 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* 自定义类 */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

.slide-up {
    animation: slideUp 0.6s ease-out;
}

.pulse-hover:hover {
    animation: pulse 0.5s ease-in-out;
}

/* 导航栏滚动效果 */
.navbar-scrolled {
    background-color: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

/* 加载更多按钮动画 */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    margin-left: 8px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 卡片阴影效果增强 */
.card-enhanced {
    transition: all 0.3s ease;
}

.card-enhanced:hover {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

/* 搜索框聚焦效果 */
.search-input:focus {
    border-color: #165DFF;
    box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.1);
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    padding: 1rem;
}

.pagination a {
    color: #165DFF;
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.pagination a:hover {
    background-color: #f0f4ff;
}

.pagination .active {
    background-color: #165DFF;
    color: white;
}

/* 响应式调整 */
@media (max-width: 640px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .hero-content {
        padding-top: 2rem;
        padding-bottom: 2rem;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

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

/* 文本选择样式 */
::selection {
    background-color: rgba(22, 93, 255, 0.2);
    color: #165DFF;
}

/* 图片加载效果 */
img {
    transition: opacity 0.3s ease;
}

img.loading {
    opacity: 0;
}

img.loaded {
    opacity: 1;
}

/* 按钮禁用状态 */
button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 表单验证样式 */
input:invalid, textarea:invalid {
    border-color: #ef4444;
}

input:valid, textarea:valid {
    border-color: #10b981;
}

/* 提示消息样式 */
.alert {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
}