.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
    background-color: #f5f5f5;
    padding: 20px;
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.login-title {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
    font-size: 24px;
    font-weight: 600;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-grid {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 15px;
    align-items: center;
}

.form-label {
    text-align: right;
    font-weight: bold;
    color: #555;
}

.form-label label {
    margin: 0;
    padding: 10px 0;
}

.form-input input[type="text"],
.form-input input[type="email"],
.form-input input[type="password"] {
    text-align: left;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    width: 100%;
    box-sizing: border-box;
    min-height: 40px;
    transition: all 0.3s ease;
}

.form-input input[type="text"]:focus,
.form-input input[type="email"]:focus,
.form-input input[type="password"]:focus {
    border-color: #4a90e2;
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.2);
    outline: none;
}

.form-input input[type="text"]::placeholder,
.form-input input[type="email"]::placeholder,
.form-input input[type="password"]::placeholder {
    color: #999;
}

.login-button {
    width: 100%;
    padding: 16px;
    background-color: #4a90e2;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-button:hover {
    background-color: #3a7bc8;
}

/* 输入提示动画 */
.form-input:focus + .input-label,
.form-input:not(:placeholder-shown) + .input-label {
    transform: translateY(-20px);
    font-size: 12px;
    color: #4a90e2;
}