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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            overflow-x: hidden;
            height: auto;
        }


        /* 背景图 */
        bg{
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            filter: blur(5px) brightness(0.7);
            z-index: -1;
            background-image: url(../img/BG/enGu1.png);
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            background-attachment: fixed;

        }

        /* 主窗口容器 */
        .main-container {
            position: relative;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;


            color: white;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
            /* background: linear-gradient(135deg, #0020af 0%, #a2884b 100%); */
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
            z-index: 10;
        }
        /* 头像样式 */
        .avatar {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            border: 5px solid rgba(255, 255, 255, 0.3);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            margin-bottom: 30px;
            animation: float 3s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
        }

        /* 格言样式 */
        .motto {
            color: white;
            font-size: 22px;
            font-weight: 300;
            text-align: center;
            max-width: 600px;
            padding: 0 20px;
            opacity: 0.9;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        }



        @keyframes bounce {
            0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
            40% { transform: translateY(-10px); }
            60% { transform: translateY(-5px); }
        }



        /* Sub容器基础样式 */
.sub-container {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    width: 100vw;
    min-height: 100vh;
    background: rgb(0, 0, 0);
    backdrop-filter: blur(10px);
    padding: 40px 20px;
    gap: 60px;
    overflow-x: hidden;
}

/* 大横幅区域 - 玻璃拟态风格 */
.hero-banner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    max-width: 1200px;
    width: 100%;
    padding: 60px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 40px;
}

.hero-content {
    color: white;
    text-align: left;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.hero-actions {
    display: flex;
    gap: 20px;
}

.btn-primary, .btn-secondary {
    padding: 12px 30px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    /* position: fixed; */
    width: 300px;
    /* border-radius: 50%; */
    object-fit: cover;
    /* border: 5px solid rgba(255, 255, 255, 0.2); */
    /* box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2); */
    animation: float 3s ease-in-out infinite;
}

/* 小分区区域 - 玻璃卡片 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    width: 100%;
    padding: 0 20px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    color: white;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-card p {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.6;
}

/* 文章展示区域 - 现代卡片设计 */
.article-section {
    max-width: 1200px;
    width: 100%;
    padding: 0 20px;
}

.section-title {
    color: white;
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.article-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.article-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.article-card:hover .article-image img {
    transform: scale(1.1);
}

.article-content {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-title {
    color: white;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    line-height: 1.4;
}

.article-excerpt {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.article-date {
    color: rgba(255, 255, 255, 0.6);
}

.article-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-banner {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 40px;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-image img {
        width: 250px;
        height: 250px;
    }
    
    .feature-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .sub-container {
        padding: 20px 15px;
        gap: 40px;
    }
    
    .hero-banner {
        padding: 30px 20px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-image img {
        width: 200px;
        height: 200px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .article-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .feature-icon {
        font-size: 2.5rem;
    }
    
    .feature-card h3 {
        font-size: 1.3rem;
    }
    
    .article-title {
        font-size: 1.2rem;
    }
}

/* 动画效果 */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content, .feature-card, .article-card {
    animation: fadeInUp 0.6s ease-out;
}

.feature-card:nth-child(2) { animation-delay: 0.1s; }
.feature-card:nth-child(3) { animation-delay: 0.2s; }
.feature-card:nth-child(4) { animation-delay: 0.3s; }

.article-card:nth-child(2) { animation-delay: 0.1s; }
.article-card:nth-child(3) { animation-delay: 0.2s; }


/* 在文件末尾添加以下窗口动画样式 */

/* 窗口基础样式 */
.screen-note {
    position: absolute;
    background-color: #f0f0f0;
    border: 2px solid #ccc;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    z-index: 1000;
    overflow: hidden;
}

/* 标题栏样式 */
.screen-note .title-bar {
    background-color: #e0e0e0;
    padding: 8px;
    border-radius: 6px 6px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: move;
    user-select: none;
}

/* 标题样式 */
.screen-note .note-title {
    margin: 0;
    font-size: 16px;
    font-weight: bold;
    color: #333;
}

/* 按钮容器样式 */
.screen-note .window-buttons {
    display: flex;
    gap: 4px;
}

/* 窗口按钮基础样式 */
.screen-note .window-btn {
    width: 24px;
    height: 24px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

/* 按钮悬停效果 */
.screen-note .window-btn:hover {
    transform: scale(1.1);
}

/* 不同按钮的颜色 */
.screen-note .close-btn {
    background-color: #ff5f57;
    color: white;
}

.screen-note .fold-btn {
    background-color: #ffbd2e;
    color: white;
}

.screen-note .fullscreen-btn {
    background-color: #28ca42;
    color: white;
}

/* 内容区域样式 */
.screen-note .note-content {
    padding: 16px;
    overflow: auto;
    color: #333;
}

/* 窗口动画效果 */
@keyframes windowScaleUpFade {
    0% {
        opacity: 0;
        transform: scale(0.3) translateY(50px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes windowScaleDownFade {
    0% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
    100% {
        opacity: 0;
        transform: scale(0.3) translateY(-30px);
    }
}

/* 动画类 */
.window-animation {
    will-change: transform, opacity;
}

/* 打开动画 */
.window-opening {
    animation: windowScaleUpFade 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

/* 关闭动画 */
.window-closing {
    animation: windowScaleDownFade 0.4s cubic-bezier(0.6, -0.28, 0.735, 0.045) forwards;
}

/* 拖拽时的样式 */
.screen-note.dragging {
    opacity: 0.8;
    transform: rotate(2deg);
    transition: none;
}

/* 全屏模式样式 */
.screen-note.fullscreen-mode {
    border-radius: 0;
    border: none;
}

/* 折叠模式样式 */
.screen-note.folded-mode {
    height: 40px !important;
}

.screen-note.folded-mode .note-content {
    display: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .screen-note {
        max-width: 90vw;
        max-height: 80vh;
    }
    
    .screen-note .note-title {
        font-size: 14px;
    }
    
    .screen-note .window-btn {
        width: 20px;
        height: 20px;
        font-size: 14px;
    }
}