/* 全局样式 */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    flex: 1;
}

/* 英雄区域样式 */
.hero-section {
    position: relative;
    overflow: hidden;
    padding: 4rem 0;
}

.hero-section img {
    transition: transform 0.5s ease;
}

.hero-section:hover img {
    transform: scale(1.02);
}

/* 文件卡片样式 */
.file-card {
    transition: transform 0.2s, box-shadow 0.2s;
    height: 100%;
}

.file-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.file-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* 下载按钮样式 */
.download-btn {
    transition: all 0.3s;
}

.download-btn:hover {
    transform: scale(1.05);
}

/* 文件分享页样式 */
.share-container {
    max-width: 700px;
    margin: 0 auto;
}

.file-info-card {
    border-radius: 10px;
    overflow: hidden;
}

.file-header {
    padding: 2rem 0;
}

/* 功能区块样式 */
.card {
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
    border-radius: 0.5rem;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 响应式调整 */
@media (max-width: 992px) {
    .hero-section {
        text-align: center;
        padding: 3rem 0;
    }
    
    .hero-section .btn {
        margin-bottom: 1rem;
    }
}

@media (max-width: 768px) {
    .display-4 {
        font-size: 2.5rem;
    }
    
    .display-5 {
        font-size: 2rem;
    }
    
    .lead {
        font-size: 1rem;
    }
}

.file-name {
    word-break: break-word;
}

/* 复制按钮样式 */
.copy-btn {
    cursor: pointer;
}

/* 登录页样式 */
.login-container {
    max-width: 400px;
    margin: 2rem auto;
}

/* 上传区域样式 */
.upload-area {
    border: 2px dashed #ccc;
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.upload-area:hover, .upload-area.dragover {
    border-color: #0d6efd;
    background-color: rgba(13, 110, 253, 0.05);
}

.upload-icon {
    font-size: 3rem;
    color: #6c757d;
    margin-bottom: 1rem;
}

/* 文件类型图标颜色 */
.file-icon.exe { color: #dc3545; }
.file-icon.zip, .file-icon.rar, .file-icon.7z { color: #fd7e14; }
.file-icon.msi { color: #6610f2; }
.file-icon.pdf { color: #dc3545; }
.file-icon.doc, .file-icon.docx { color: #0d6efd; }
.file-icon.xls, .file-icon.xlsx { color: #198754; }
.file-icon.ppt, .file-icon.pptx { color: #d63384; }
.file-icon.txt, .file-icon.csv { color: #6c757d; }

/* 响应式调整 */
@media (max-width: 768px) {
    .file-header {
        padding: 1rem 0;
    }
    
    .file-icon {
        font-size: 2.5rem;
    }
}