body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: url('/static/images/background5.jpg') no-repeat center center;
    background-size: cover;
    font-family: Arial, sans-serif;
}

.login-container {
    display: flex;
    width: 900px;
    height: 500px;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.left-column {
    flex: 65%; /* 左侧占65%宽度 */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
}

.announcement {
    width: 100%;
    height: 100%;
    border: none;
}

.divider {
    width: 1px;
    background-color: #ccc;
}

.right-column {
    flex: 35%; /* 右侧占35%宽度 */
    padding: 30px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.right-column h2 {
    text-align: center;
    margin-bottom: 20px;
    font-weight: bold;
}

.right-column input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

.right-column button {
    width: 100%;
    padding: 10px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 20px;
}

.right-column button:hover {
    background-color: #0056b3;
}

.error-message {
    color: red;
    margin-top: 10px;
    text-align: center;
}