* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
    padding: 5px;
    max-width: 600px;
    margin: 0 auto;
}
.container {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 14px;
    margin-bottom: 20px;
}
.header {
    text-align: center;
    margin-bottom: 20px;
}
.header h1 {
    font-size: 24px;
    color: #333;
    margin-bottom: 8px;
}
.header img {
    width: 180px;
    height: 24px;
    margin-bottom: 16px;
}
.intro {
    margin-bottom: 24px;
    font-size: 15px;
    color: #444;
}
.highlight {
    color: #e74c3c;
    font-weight: bold;
}
.features {
    background-color: #f9f9f9;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
}
.features ol {
    padding-left: 20px;
}
.features li {
    margin-bottom: 8px;
}
.note {
    font-size: 14px;
    color: #666;
    font-style: italic;
    margin-top: 20px;
    margin-bottom: 24px;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #555;
}
.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    resize: vertical;
    min-height: 150px;
}
.btn {
    display: block;
    width: 100%;
    padding: 14px;
    background-color: #e74c3c;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s;
}
.btn:hover {
    background-color: #c0392b;
}
.status {
    text-align: center;
    margin-top: 16px;
    padding: 12px;
    border-radius: 8px;
    display: none;
}
.status.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}
.status.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}
.emphasis {
    font-weight: bold;
}
.container .error_message{
    text-align: center;
    align-items: center;
    margin: 50% 0;
    /*padding: 12px;*/
}

.container .success_message{
    text-align: center;
    margin: 175px 0;
    padding: 12px;
    border-radius: 8px;
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}