/* 通用页面样式 - 避免重复定义 */

/* 基础 body 样式 */
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    overflow-x: hidden;
}

/* 导航按钮组 */
.nav-buttons {
    position: fixed;
    top: 20px;
    left: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 9999;
}

.nav-button {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 12px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-size: 0.9em;
    font-weight: 500;
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    white-space: nowrap;
}

.nav-button.back-blog {
    background: linear-gradient(135deg, #764ba2, #667eea);
}

.nav-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
}

/* 卡片容器样式 */
.about-card,
.resume-card,
.project-detail-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 0.6s ease-out;
}

/* 背景遮罩层（可选） */
.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: -1;
}

/* 响应式：移动端导航按钮调整 */
@media (max-width: 768px) {
    .nav-buttons {
        top: 10px;
        left: 10px;
        gap: 8px;
    }
    
    .nav-button {
        padding: 10px 16px;
        font-size: 0.85em;
    }
}