/* 全局样式 */
body {
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    font-family: Arial, sans-serif;
}

.container {
    width: 43%;
    background-color: white;
    box-shadow: 3px 4px 8px rgba(0, 0, 0, 0.3);
    border-radius: 3px;
    padding: 20px;
    transition: transform 0.3s ease;
    font-family: "经典隶变简", sans-serif;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.message-board {
    width: 95%;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 15px;
    margin-bottom: 20px;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.1);
}

.message-board h3 {
    margin: 0;
    font-size: 18px;
}

.message-time {
    font-size: 12px;
    color: #888;
    margin-bottom: 10px;
}

.message-content {
    font-size: 16px;
    color: #333;
}

.message-form {
    width: 97%;
    margin-top: 30px;
}

.message-form .form-group {
    margin-bottom: 15px;
}

.message-form label {
    display: block;
    font-size: 14px;
    margin-bottom: 5px;
}

.message-form input, .message-form textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.message-form button {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
}

.message-form button:hover {
    background-color: #0056b3;
}

/* flash信息提醒 */
/* 增加淡出效果 */
.flashes {
    position: fixed;
    top: 20px;
    left: 45%;
    margin: 0 auto;
    z-index: 1000;
}

.flashes li {
    list-style: none;
    padding: 10px;
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    margin-bottom: 5px;
    border-radius: 5px;
    opacity: 1;
    transition: opacity 0.5s ease-out;
}

/* 响应式布局 */
@media (max-width: 768px) {
    .container {
        width: 90%;
        padding: 15px;
    }

    .message-board {
        width: 100%;
    }

    .message-form {
        width: 100%;
    }

    .message-board h3 {
        font-size: 16px;
    }

    .message-time {
        font-size: 10px;
    }

    .message-content {
        font-size: 14px;
    }

    .message-form label {
        font-size: 12px;
    }

    .message-form input, .message-form textarea {
        font-size: 12px;
    }

    .message-form button {
        font-size: 14px;
        padding: 8px 16px;
    }

    .flashes {
        left: 20px;
        right: 20px;
        width: auto;
    }
}