/* Global Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    padding: 30px;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

header h1 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.subtitle {
    color: #7f8c8d;
    font-size: 1.1em;
}

/* Welcome Screen */
.welcome-screen {
    text-align: center;
    padding: 40px 20px;
}

.welcome-content {
    max-width: 700px;
    margin: 0 auto;
}

.welcome-content h2 {
    margin-bottom: 20px;
    color: #2c3e50;
}

.welcome-content p {
    margin-bottom: 15px;
    color: #34495e;
}

/* Simulator Screen */
.simulator-screen {
    padding: 20px;
}

.simulator-header {
    margin-bottom: 30px;
    text-align: center;
}

.simulator-header h2 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.form-section {
    margin-bottom: 25px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.form-section h3 {
    margin-bottom: 15px;
    color: #3498db;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

input[type="radio"], input[type="checkbox"] {
    cursor: pointer;
}

input[type="range"] {
    width: 100%;
    margin: 15px 0;
}

.info-tooltip {
    display: inline-block;
    margin-left: 10px;
    cursor: pointer;
    color: #3498db;
    font-weight: bold;
}

.tooltip-content {
    display: none;
    background-color: white;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    margin-top: 10px;
    border-left: 4px solid #3498db;
}

/* Buttons */
.btn {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    transition: background-color 0.3s;
    margin-top: 20px;
}

.btn:hover {
    background-color: #2980b9;
}

.navigation {
    text-align: right;
    margin-top: 30px;
}

.close-tooltip {
    background-color: #e74c3c;
    margin-top: 10px;
}

.close-tooltip:hover {
    background-color: #c0392b;
}

/* Results Screen */
.results-screen {
    padding: 30px;
    text-align: center;
}

.results-screen h2 {
    margin-bottom: 30px;
    color: #2c3e50;
}

#resultsContent {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    text-align: left;
    margin-bottom: 30px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .form-section {
        padding: 15px;
    }
    /* Chat Screen Styles */
.chat-screen {
    padding: 30px;
    text-align: center;
}

.chat-header {
    margin-bottom: 30px;
}

.chat-container {
    max-width: 700px;
    margin: 0 auto;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
}

.chat-messages {
    height: 400px;
    overflow-y: auto;
    padding: 20px;
    background-color: #f9f9f9;
    text-align: left;
}

.message {
    margin-bottom: 15px;
    padding: 10px 15px;
    border-radius: 18px;
    max-width: 80%;
}

.user-message {
    background-color: #3498db;
    color: white;
    margin-left: auto;
    border-bottom-right-radius: 5px;
}

.ai-message {
    background-color: #ecf0f1;
    margin-right: auto;
    border-bottom-left-radius: 5px;
}

/* 更新后的聊天输入框样式 - 保证生效版本 */
.chat-input input {
    flex-grow: 1;
    padding: 15px 20px !important;
    border: 1px solid #ddd !important;
    border-radius: 25px !important;
    margin: 0 auto 10px auto !important;
    font-size: 1.1em !important;
    width: 80% !important;
    display: block !important;
    height: 50px !important; /* 明确设置高度 */
    box-sizing: border-box !important;
}

/* 同时确保容器也适当调整 */
.chat-input {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px;
    background-color: white;
    border-top: 1px solid #eee;
}



#backToStartBtn {
    margin-top: 30px;
}
}