:root {
    color-scheme: dark;
    overflow: hidden;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    color: white;
    min-height: 100vh;
    overflow: hidden;
}

.app {
    position: relative;
    min-height: 100vh;
    width: 100%;
}

/* 主容器样式 */
.main-container {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    transform: translateZ(0);
    will-change: transform;
    backface-visibility: hidden;
    perspective: 1000px;
}

.main-container.modal-open {
    transform: scale(0.95) translateZ(0);
}

/* 添加一个新的模糊层，替代直接在主容器上使用filter */
.main-container::after {
    content: '';
    position: fixed;
    inset: 0;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    opacity: 0;
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
    z-index: 2;
    transform: translateZ(0) scale(1.2);
    transform-origin: center;
}

.main-container.modal-open::after {
    opacity: 1;
}

/* 背景样式 */
.background-image {
    position: absolute;
    inset: 0;
    background-image: url('imgs/BG01.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transform: scale(1.1);
}

/* 背景遮罩样式 */
.background-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    transition: background-color 0.5s ease;
    transform: scale(1.5);
    transform-origin: center;
    overflow: hidden;
}

/* 玻璃卡片样式 */
.glass-card {
    position: relative;
    z-index: 1;
    padding: 3rem;
    border-radius: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
    /* 动画消失速度调节 */
    transition: all 2s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;

    /* 鼠标光效变量 */
    --mouse-x: 50%;
    --mouse-y: 50%;

    /* 组合背景 */
    background: 
        radial-gradient(
            800px circle at var(--mouse-x) var(--mouse-y),
            rgba(255, 255, 255, 0.08),
            transparent 40%
        ),
        rgba(255, 255, 255, 0.1);

    /* 添加玻效果 */
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    width: 90%;
    max-width: 400px;
    margin: 20px;
}

/* 修改悬停效果 */
.glass-card:hover {
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.2);
    
    /* 悬停时的组合背景 */
    background: 
        radial-gradient(
            800px circle at var(--mouse-x) var(--mouse-y),
            rgba(155, 183, 203, 0.2),
            transparent 40%
        ),
        rgba(255, 255, 255, 0.15);
    /* 动画进入速度调节 */
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.logo {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.logo svg {
    width: 64px;
    height: 82px;
}

.logo-text {
    color: #f6f7f8;
    font-weight: bold;
    font-size: 1.25rem;
    text-align: center;
    line-height: 1.5;
}

/* 导航按钮样式 */
.nav-buttons {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
    width: 100%;
}

.nav-button {
    width: 16rem;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-button:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

/* 模态框样式 */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    padding: 1rem;
    visibility: hidden;
    pointer-events: none;
    transition: visibility 0s linear 0.5s;
}

.modal.active {
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
}

/* 模态框遮罩样式 */
.modal-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

.modal.active .modal-overlay {
    opacity: 1;
}

/* 修改模态框内容样式 */
.modal-content {
    position: relative;
    z-index: 51;
    width: 100%;
    max-width: 36rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    transform: scale(0.9);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    backface-visibility: hidden;
    perspective: 1000px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.modal.active .modal-content {
    transform: scale(1) translateZ(0);
    opacity: 1;
}

/* 模态框内容样式 */
.modal h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.5rem;
}

/* 修改网格布局样式 */
.grid-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    width: 100%;
    max-width: 600px;
    justify-content: center;
    align-items: stretch;
}

/* 当只有一个子元素时的样式 */
.grid-links:only-child,
.grid-links a:only-child {
    grid-column: 1 / -1;
    width: 250px;
    margin: 0 auto;
}

/* 确保两个及以上的元素时每行显示两个 */
@media (min-width: 640px) {
    .grid-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

.grid-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 1.5rem;
    text-align: center;
    color: white;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.75rem;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    height: 3.5rem;
    width: 100%;
}

.grid-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.close-button {
    display: block;
    margin: 1.5rem auto 0;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-button:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* 添加媒体查询以处理小屏幕 */
@media (max-width: 640px) {
    .glass-card {
        padding: 2rem;
        margin: 1rem;
    }

    .nav-button {
        width: 100%;
        min-width: auto;
    }
}

/* 添加工具模态框特殊样式 */
.tool-content {
    max-width: 80vw;  /* 占据80%视口宽度 */
    max-height: 80vh; /* 占据80%视口高度 */
    width: 80vw;      /* 固定宽度为80%视口 */
    height: 80vh;     /* 固定高度为80%视口 */
    padding: 0;       /* 移除内边距以最大化iframe空间 */
}

.tool-frame-container {
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
}

.tool-frame {
    width: 100%;
    height: 100%;
    border: none;
    background: transparent;
}

/* 调工模���框的响式 */
@media (max-width: 640px) {
    .tool-content {
        width: 100%;
        height: 80vh;
        margin: 1rem;
    }
}

/* 加载动画容器 */
.tool-frame-container {
    position: relative;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tool-frame-container.loading {
    opacity: 1;
}

.tool-frame-container.loading::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 2;
}

.tool-frame-container.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-left-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 3;
}

.tool-frame-container.loaded {
    opacity: 1;
}

.tool-frame {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tool-frame-container.loaded .tool-frame {
    opacity: 1;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* 优化工具模态框动画 */
.tool-content {
    transform: scale(0.95);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal.active .tool-content {
    transform: scale(1);
    opacity: 1;
}

/* 添加版权信息样式 */
.copyright {
    position: fixed;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.2);
    font-size: 0.8rem;
    text-align: center;
    z-index: 10;
}

/* 添加媒体查询来处理移动端显示 */
@media screen and (max-width: 480px) {
    .glass-card {
        width: 92%; /* 略微增加宽度占比 */
        margin: 10px;
        padding: 1.5rem 1rem; /* 减小左右内边距 */
    }

    .nav-buttons {
        gap: 0.8rem; /* 减小按钮之间的间距 */
    }

    .nav-button {
        width: 100%; /* 在移动端占满容器宽度 */
        max-width: 16rem;
        padding: 0.8rem 1.5rem; /* 减小按钮内边距 */
        font-size: 1.1rem; /* 稍微减小字体大小 */
    }
}

/* 在更窄的屏幕上进一步优化 */
@media screen and (max-width: 360px) {
    .glass-card {
        width: 94%;
        margin: 8px;
        padding: 1.2rem 0.8rem; /* 进一步减小内��距 */
    }

    .nav-buttons {
        gap: 0.6rem;
    }

    .nav-button {
        padding: 0.7rem 1.2rem;
        font-size: 1rem; /* 更小的字体大小 */
    }
}

/* 修改软件列表样式 */
.software-content {
    max-width: 1200px; /* 增加最大宽度以适应更多列 */
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.software-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 1rem;
}

.software-category {
    padding-bottom: 1rem;
}

.category-title {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

/* 修改网格布局，使其在一行显示更多项目 */
.software-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 默认显示4列 */
    gap: 1rem;
}

.software-item {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.75rem;
    padding: 1rem;
    transition: all 0.3s ease;
    cursor: pointer; /* 添加指针样式 */
}

.software-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.software-name {
    color: white;
    font-weight: bold;
    margin-bottom: 0.5rem;
    display: block;
    text-decoration: none;
    font-size: 1.1rem;
}

.software-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* 添加响应式布局 */
@media (max-width: 1200px) {
    .software-grid {
        grid-template-columns: repeat(3, 1fr); /* 中等屏幕显示3列 */
    }
}

@media (max-width: 900px) {
    .software-grid {
        grid-template-columns: repeat(2, 1fr); /* 小屏幕显示2列 */
        gap: 0.8rem;
    }
    
    /* 调整卡片内边距 */
    .software-item {
        padding: 0.8rem;
    }
    
    /* 调整字体大小 */
    .software-name {
        font-size: 1rem;
    }
    
    .software-description {
        font-size: 0.85rem;
    }
}

/* 移除之前的单列布局设置，保持两列 */
@media (max-width: 600px) {
    .software-content {
        width: 95%;
        margin: 0.5rem;
    }
    
    .software-grid {
        grid-template-columns: repeat(2, 1fr); /* 保持两列 */
        gap: 0.5rem;
    }
    
    .software-item {
        padding: 0.7rem;
    }
}

/* 在最小屏幕上依然保持两列 */
@media (max-width: 400px) {
    .software-grid {
        grid-template-columns: repeat(2, 1fr); /* 保持两列 */
        gap: 0.4rem;
    }
    
    .software-item {
        padding: 0.6rem;
    }
    
    .software-name {
        font-size: 0.9rem;
    }
    
    .software-description {
        font-size: 0.8rem;
    }
}

/* 添加软件项标题行样式 */
.software-title-row {
    display: flex;
    align-items: center; /* 改回居中对齐 */
    gap: 6px;
    margin-bottom: 0.5rem;
}

.software-name {
    color: white;
    font-weight: bold;
    font-size: 1.1rem;
    line-height: 1.2;
    padding-top: 0; /* 移除顶部内边距 */
}

.download-icon {
    min-width: 20px;
    width: 30px;
    height: 30px;
    cursor: pointer;
    padding: 3px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: -1px;
    margin-top: -8px;
    flex-shrink: 0;
    opacity: 0.3;
    position: relative;
}

.download-icon:hover {
    opacity: 1;
    transform: translateY(-1px);
    background: none; /* 移除悬停时的背景 */
}

.download-icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
    display: block;
}

/* 确保软件项内容布局正确 */
.software-item {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.75rem;
    padding: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

/* 修改软件项的响应式布局 */
@media (max-width: 900px) {
    .software-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
    }
    
    .software-item {
        padding: 0.8rem;
    }
    
    .software-name {
        font-size: 0.95rem;
    }
    
    .software-description {
        font-size: 0.8rem;
    }
}

@media (max-width: 600px) {
    .software-content {
        width: 95%;
        margin: 0.5rem;
    }
    
    .software-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .software-item {
        padding: 0.6rem;
    }

    .software-title-row {
        gap: 4px;
        margin-bottom: 0.3rem;
    }

    .software-name {
        font-size: 0.9rem;
    }
    
    .software-description {
        font-size: 0.75rem;
        line-height: 1.2;
    }

    /* 在600px以下隐藏下载图标 */
    .download-icon {
        display: none;
    }
}

@media (max-width: 400px) {
    .software-grid {
        gap: 0.4rem;
    }
    
    .software-item {
        padding: 0.5rem;
    }
    
    .software-name {
        font-size: 0.85rem;
    }
    
    .software-description {
        font-size: 0.7rem;
        line-height: 1.1;
    }

    .category-title {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }
}