body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

.container {
    width: 100%;
    max-width: 800px;
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
}

h1 {
    margin-top: 0;
    color: #c0392b;
}

p {
    color: #666;
    margin-bottom: 25px;
}

.input-area {
    display: flex;
    align-items: flex-start; /* 按钮和输入框顶部对齐 */
    gap: 15px; /* 间距 */
}

#debug-input {
    flex-grow: 1; /* 输入框占据大部分空间 */
    height: 250px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    resize: vertical; /* 只允许垂直方向调整大小 */
}

#extract-btn {
    padding: 12px 25px;
    font-size: 16px;
    font-weight: bold;
    color: #fff;
    background-color: #e74c3c;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    flex-shrink: 0; /* 防止按钮被压缩 */
}

#extract-btn:hover {
    background-color: #c0392b;
}

#results-container {
    margin-top: 30px;
    text-align: left;
}

#results-container h3 {
    margin-top: 0;
}

#results-container ul {
    list-style-type: none;
    padding: 0;
}

#results-container li {
    background-color: #ecf0f1;
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 8px;
}

#results-container a {
    text-decoration: none;
    color: #2980b9;
    word-break: break-all;
}

#results-container a:hover {
    text-decoration: underline;
}

.message {
    color: #7f8c8d;
    font-style: italic;
}