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

body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    line-height: 1.6;
}

.container {
    display: flex;
    height: 100vh;
}

.column {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.left-column {
    border-right: 1px solid #ddd;
    background-color: #fff;
}

.middle-column {
    border-right: 1px solid #ddd;
    background-color: #fff;
}

.right-column {
    background-color: #fafafa;
}

h1 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

textarea {
    width: 100%;
    height: 70vh;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    resize: none;
    font-size: 14px;
    line-height: 1.5;
}

.generate-btn {
    display: block;
    width: 100%;
    padding: 10px;
    margin-top: 15px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.generate-btn:hover {
    background-color: #45a049;
}

.input-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.input-actions .generate-btn {
    margin-top: 0;
    flex: 1;
}

.result-item {
    background-color: #fff;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: relative;
}

.paragraph-number {
    position: absolute;
    top: 5px;
    right: 10px;
    background-color: #e0e0e0;
    color: #333;
    font-size: 12px;
    padding: 3px 8px;
    border-radius: 10px;
    font-weight: bold;
}

.paragraph-text {
    margin-bottom: 10px;
    color: #333;
}

.copy-btn {
    padding: 5px 15px;
    background-color: #008CBA;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 14px;
}

.copy-btn:hover {
    background-color: #0077A3;
}

.copy-btn:active {
    background-color: #005F80;
}

.copy-btn.copied {
    background-color: #FFC107;
}

/* 小按钮样式 */
.small-btn {
    padding: 5px 15px;
    font-size: 14px;
    margin-left: 10px;
    background-color: #6c757d;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

.small-btn:hover {
    background-color: #5a6268;
}

.tooltip {
    position: fixed;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 8px 15px;
    border-radius: 5px;
    font-size: 14px;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s;
}

.auto-loop-container {
    background-color: #fff;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border: 2px solid #4CAF50;
    position: relative;
}

.auto-loop-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.auto-loop-header h3 {
    color: #4CAF50;
    margin: 0;
    font-size: 18px;
}

.auto-loop-content {
    background-color: #f9f9f9;
    border-radius: 8px;
    padding: 15px;
}

.auto-loop-info {
    color: #333;
    font-weight: bold;
    font-size: 14px;
}

.auto-loop-item {
    background-color: #fff;
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    position: relative;
    min-height: 80px;
}

#loopCopyBtn {
    display: block;
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    font-size: 16px;
}

.loop-status {
    text-align: center;
    padding: 10px;
    border-radius: 5px;
    font-weight: bold;
    opacity: 0;
    transition: opacity 0.5s ease;
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #4CAF50;
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    z-index: 10;
}

.loop-status.show {
    opacity: 1;
}

.loop-status.success {
    background-color: #4CAF50;
    color: white;
}

.loop-status.info {
    background-color: #2196F3;
    color: white;
}

.loop-status.warning {
    background-color: #FFC107;
    color: #333;
}