/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Courier New', Courier, monospace;
    background-color: #ffffff;
    color: #000000;
    line-height: 1.6;
    padding: 20px;
}

/* 容器 */
.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: #ffffff;
    border: 2px solid #000000;
    padding: 0;
}

/* 标题区域 */
.header {
    background-color: #000000;
    color: #ffffff;
    padding: 30px 40px;
    text-align: center;
    border-bottom: 2px solid #000000;
}

.header h1 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.subtitle {
    font-size: 14px;
    color: #cccccc;
    letter-spacing: 1px;
}

/* 主要内容区域 */
.main-content {
    padding: 40px;
}

/* 表单组 */
.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 10px;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 输入框样式 */
.text-input,
.text-output {
    width: 100%;
    padding: 15px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    border: 2px solid #000000;
    background-color: #ffffff;
    color: #000000;
    resize: vertical;
}

.text-input:focus {
    outline: none;
    background-color: #f5f5f5;
    border: 2px solid #000000;
}

.text-output {
    background-color: #f0f0f0;
    cursor: default;
}

.text-output:focus {
    outline: none;
}

/* 字符计数 */
.char-count {
    display: block;
    margin-top: 5px;
    font-size: 12px;
    color: #666666;
    text-align: right;
}

/* 按钮区域 */
.button-section {
    margin: 40px 0;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

/* 按钮基础样式 */
.btn {
    padding: 15px 30px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid #000000;
    background-color: #ffffff;
    color: #000000;
    cursor: pointer;
    transition: all 0.2s;
}

.btn:hover:not(:disabled) {
    background-color: #000000;
    color: #ffffff;
}

.btn:active:not(:disabled) {
    transform: translateY(2px);
}

.btn:disabled {
    background-color: #e0e0e0;
    color: #999999;
    border-color: #999999;
    cursor: not-allowed;
}

/* 主要按钮 */
.btn-primary {
    background-color: #000000;
    color: #ffffff;
}

.btn-primary:hover:not(:disabled) {
    background-color: #333333;
}

/* 次要按钮 */
.btn-secondary {
    background-color: #ffffff;
    color: #000000;
}

/* 成功按钮 */
.btn-success {
    background-color: #ffffff;
    color: #000000;
}

/* 轮廓按钮 */
.btn-outline {
    background-color: #ffffff;
    color: #000000;
    border: 2px solid #000000;
}

/* 图标按钮 */
.btn-icon {
    padding: 8px 15px;
    font-size: 12px;
    border: 1px solid #000000;
    background-color: #ffffff;
    color: #000000;
    cursor: pointer;
}

.btn-icon:hover {
    background-color: #000000;
    color: #ffffff;
}

/* 结果区域 */
.result-section {
    margin: 30px 0;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.result-header label {
    font-weight: bold;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.result-status {
    margin-top: 10px;
    padding: 10px;
    font-size: 13px;
    border: 1px solid #000000;
    display: none;
}

.result-status.success {
    display: block;
    background-color: #ffffff;
    border-left: 5px solid #000000;
}

.result-status.error {
    display: block;
    background-color: #ffffff;
    border-left: 5px solid #000000;
}

/* 消息提示区域 */
.message-section {
    margin: 30px 0;
}

.message-box {
    display: flex;
    align-items: center;
    padding: 15px;
    border: 2px solid #000000;
    background-color: #ffffff;
    position: relative;
}

.message-box.success {
    background-color: #f5f5f5;
    border-left: 5px solid #000000;
}

.message-box.error {
    background-color: #f5f5f5;
    border-left: 5px solid #000000;
}

.message-icon {
    font-size: 18px;
    margin-right: 10px;
}

.message-text {
    flex: 1;
    font-size: 14px;
}

.message-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 0 10px;
    color: #000000;
}

.message-close:hover {
    color: #666666;
}

/* 操作区域 */
.action-section {
    margin: 30px 0;
    text-align: center;
}

/* 页脚 */
.footer {
    background-color: #000000;
    color: #ffffff;
    padding: 20px 40px;
    text-align: center;
    border-top: 2px solid #000000;
    margin-top: 40px;
}

.footer p {
    font-size: 12px;
    margin: 5px 0;
}

.warning {
    color: #cccccc;
    font-size: 11px;
    margin-top: 10px;
}

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

    .container {
        border: 1px solid #000000;
    }

    .header {
        padding: 20px;
    }

    .header h1 {
        font-size: 20px;
    }

    .main-content {
        padding: 20px;
    }

    .button-section {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        padding: 12px 20px;
    }

    .footer {
        padding: 15px 20px;
    }
}

/* 打印样式 */
@media print {
    .button-section,
    .action-section {
        display: none;
    }

    .container {
        border: none;
    }
}