/* 全局设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: #0a0c0f;
    color: #e4e6eb;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 12px;
}

.container {
    max-width: 600px;
    width: 100%;
    background: #1a1d24;
    border-radius: 24px;
    padding: 20px 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

/* 头部 */
header h1 {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, #6e8efb, #a777e3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
}

.subtitle {
    color: #8b95a9;
    font-size: 14px;
    margin-bottom: 20px;
}

/* 工具栏 */
.toolbar {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.language-select, .expiry-select select {
    background: #2a2f3a;
    color: #e4e6eb;
    border: 1px solid #3f4450;
    border-radius: 20px;
    padding: 8px 14px;
    font-size: 14px;
    outline: none;
    width: 100%;
}

.expiry-select {
    flex: 1;
}

/* 代码输入区 */
.code-input {
    width: 100%;
    height: 200px;
    background: #0f1217;
    border: 1px solid #2f3540;
    border-radius: 16px;
    padding: 16px;
    color: #e4e6eb;
    font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
    margin-bottom: 16px;
}

.code-input:focus {
    border-color: #6e8efb;
    outline: none;
}

/* 按钮 */
.action-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.primary-btn {
    flex: 3;
    background: linear-gradient(135deg, #6e8efb, #a777e3);
    color: white;
    border: none;
    border-radius: 40px;
    padding: 14px 0;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(110,142,251,0.3);
    transition: transform 0.2s;
}

.primary-btn:active {
    transform: scale(0.97);
}

.secondary-btn {
    flex: 1;
    background: #2a2f3a;
    color: #e4e6eb;
    border: 1px solid #3f4450;
    border-radius: 40px;
    padding: 14px 0;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
}

/* 结果卡片 */
.result-section {
    margin-top: 20px;
}

.result-card {
    background: #0f1217;
    border-radius: 20px;
    padding: 20px;
    border: 1px solid #2f3540;
}

.result-label {
    color: #8b95a9;
    font-size: 14px;
    margin-bottom: 8px;
}

.link-box {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.link-box input {
    flex: 1;
    background: #1a1d24;
    border: 1px solid #2f3540;
    border-radius: 30px;
    padding: 12px 16px;
    color: #6e8efb;
    font-size: 14px;
    outline: none;
}

.copy-btn {
    background: #2a2f3a;
    border: none;
    border-radius: 30px;
    width: 48px;
    font-size: 20px;
    cursor: pointer;
}

.expiry-note {
    color: #a777e3;
    font-size: 13px;
    margin-bottom: 16px;
}

/* 预览区域 */
.preview-box {
    background: #1a1d24;
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}

.preview-label {
    color: #8b95a9;
    font-size: 13px;
    margin-bottom: 8px;
}

.preview-code {
    background: #0f1217;
    padding: 12px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'SF Mono', monospace;
    font-size: 13px;
    color: #b4c2e0;
}

/* 查看模式 */
.view-section {
    margin-top: 20px;
}

.code-viewer {
    background: #0f1217;
    border-radius: 20px;
    padding: 20px;
}

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.view-language {
    background: #2a2f3a;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
}

.view-code {
    background: #1a1d24;
    padding: 16px;
    border-radius: 12px;
    overflow-x: auto;
    font-family: monospace;
    font-size: 14px;
    white-space: pre-wrap;
    word-break: break-word;
}

/* 页脚 */
footer {
    margin-top: 30px;
    text-align: center;
    color: #4a5162;
    font-size: 13px;
}

.small {
    font-size: 11px;
    margin-top: 4px;
}

/* 工具类 */
.hidden {
    display: none;
  }