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

body {
    padding: 15px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    background-color: #f5f5f5;
}

h1, h2 {
    margin: 20px 0;
    color: #333;
    font-size: 1.5rem;
    text-align: center;
}

/* 提示信息 */
.tip {
    color: #d32f2f;
    margin: 10px 0;
    padding: 12px;
    background: #ffebee;
    border-radius: 8px;
    font-size: 0.9rem;
    text-align: center;
    border: 1px solid #ffcdd2;
}

/* 表单容器 */
.upload-form {
    background-color: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

/* 表单组 */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #666;
    font-size: 0.95rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group button {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
}

.form-group input[type="file"] {
    padding: 10px;
    border: 1px dashed #ddd;
    background-color: #f9f9f9;
}

.form-group input[type="password"] {
    font-size: 1rem;
}

/* 单选框/复选框组 */
.radio-group,
.checkbox-group {
    display: flex;
    gap: 15px;
    align-items: center;
}

.radio-group input,
.checkbox-group input {
    width: auto;
    margin-right: 5px;
}

/* 按钮样式 */
.btn-submit {
    background-color: #2196F3;
    color: #fff;
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
    padding: 15px;
    font-size: 1.1rem;
}

.btn-submit:hover {
    background-color: #1976D2;
}

/* 进度条 */
.progress-container {
    display: none;
    margin: 20px 0;
    width: 100%;
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    background-color: #eee;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background-color: #4CAF50;
    transition: width 0.3s ease;
}

/* 上传结果 */
.upload-result {
    margin: 20px 0;
    padding: 15px;
    border-radius: 8px;
    font-size: 0.95rem;
}

.result-success {
    background-color: #e8f5e9;
    color: #388e3c;
    border: 1px solid #c8e6c9;
}

.result-error {
    background-color: #ffebee;
    color: #d32f2f;
    border: 1px solid #ffcdd2;
}

.upload-result a {
    color: #2196F3;
    word-break: break-all;
    display: block;
    margin-top: 8px;
}

/* 上传记录 */
.log-list {
    background-color: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.log-list table {
    width: 100%;
    border-collapse: collapse;
}

.log-list th,
.log-list td {
    padding: 12px 8px;
    text-align: left;
    font-size: 0.85rem;
    border-bottom: 1px solid #eee;
}

.log-list th {
    color: #666;
    font-weight: 500;
}

.log-list td {
    color: #333;
    word-break: break-all;
}

.log-list a {
    color: #2196F3;
    text-decoration: none;
}

.log-list p {
    text-align: center;
    padding: 20px 0;
    color: #999;
}

/* 响应式适配 */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    h1, h2 {
        font-size: 1.3rem;
    }

    .upload-form {
        padding: 15px;
    }

    .form-group input,
    .form-group select,
    .form-group button {
        padding: 10px 12px;
        font-size: 0.95rem;
    }

    .btn-submit {
        padding: 12px;
        font-size: 1rem;
    }

    /* 隐藏表格部分列，适配手机窄屏 */
    .log-list th:nth-child(3),
    .log-list td:nth-child(3) {
        display: none;
    }
}

@media (max-width: 480px) {
    .radio-group,
    .checkbox-group {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }

    /* 进一步隐藏表格列 */
    .log-list th:nth-child(2),
    .log-list td:nth-child(2) {
        display: none;
    }
}