.plan-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* 顶部标题区域 */
.header-section {
    text-align: center;
    margin-bottom: 40px;
}

.header-section .header-stats {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.header-section .header-stats .stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: #fff;
    border-radius: 20px;
    font-size: 14px;
    color: #666;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-section .header-stats .stat-icon {
    font-size: 16px;
}

.main-title {
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
}

.main-title .highlight {
    color: #1976d2;
}

.description {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
}

.form-section {
	max-width: 1280px;
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

.required {
    color: #f44336;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.3s;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #1976d2;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-hint {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: #999;
}

.generate-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #1976d2 0%, #1565c0 100%);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.generate-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(25, 118, 210, 0.3);
}

.generate-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.result-section {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.result-header h2 {
    font-size: 24px;
    color: #333;
    margin: 0;
}

.result-actions {
    display: flex;
    gap: 10px;
}

.action-btn {
    padding: 8px 16px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
}

.action-btn:hover {
    background: #e0e0e0;
}

.result-content {
    background: #f9f9f9;
    border-radius: 8px;
    padding: 25px;
    line-height: 1.8;
    color: #333;
    font-size: 15px;
}

.plan-content {
    white-space: pre-wrap;
    word-wrap: break-word;
}

.error-message {
    background: #ffebee;
    color: #c62828;
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 20px;
    border-left: 4px solid #f44336;
}

.history-list {
    max-height: 500px;
    overflow-y: auto;
}

.history-item {
    padding: 15px;
    border-bottom: 1px solid #eee;
    transition: background 0.2s;
}

.history-item:hover {
    background: #f5f5f5;
}

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

.history-item-title {
    font-weight: 600;
    color: #333;
}

.history-item-date {
    font-size: 12px;
    color: #999;
}

.history-item-actions {
    display: flex;
    gap: 10px;
}

.history-item-btn {
    padding: 6px 12px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: background 0.2s;
}

.history-item-btn:hover {
    background: #e0e0e0;
}