/* 登录界面样式 */
.login-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #0b1d1b 0%, #0f2f2c 45%, #123c36 100%);
    z-index: 9999;
    overflow: hidden;
}

.login-box {
    width: 90%;
    max-width: 400px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    padding: 40px;
    color: #fff;
    animation: fadeIn 0.5s ease-out;
    box-sizing: border-box;
}

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

.login-header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #1abc9c;
    font-weight: 700;
    letter-spacing: 1px;
}

.login-header p {
    font-size: 1rem;
    opacity: 0.8;
    margin: 0;
}

.login-form {
    margin-bottom: 20px;
    width: 100%;
    box-sizing: border-box;
}

.input-group {
    position: relative;
    margin-bottom: 20px;
    width: 100%;
    box-sizing: border-box;
}

.input-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.2rem;
    z-index: 1;
}

.input-group input {
    width: 100%;
    height: 50px;
    padding: 15px 15px 15px 45px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: #fff;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.input-group input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.input-group input:focus {
    border-color: #1abc9c;
    box-shadow: 0 0 0 2px rgba(26, 188, 156, 0.2);
}

.login-btn {
    width: 100%;
    padding: 15px;
    background: #1abc9c;
    border: none;
    border-radius: 10px;
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.login-btn:hover {
    background: #12836d;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26, 188, 156, 0.3);
}

.login-btn:active {
    transform: translateY(0);
}

.login-error {
    margin-top: 15px;
    padding: 10px;
    background: rgba(231, 76, 60, 0.2);
    border: 1px solid rgba(231, 76, 60, 0.3);
    border-radius: 8px;
    color: #e74c3c;
    font-size: 0.9rem;
    text-align: center;
    display: none;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
}

.login-footer p {
    font-size: 0.8rem;
    opacity: 0.6;
    margin: 0;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .login-box {
        width: 85%;
        padding: 30px 20px;
        box-sizing: border-box;
    }
    
    .login-header h1 {
        font-size: 2rem;
    }
    
    .input-group {
        width: 100%;
        box-sizing: border-box;
    }
    
    .input-group input {
        width: 100%;
        box-sizing: border-box;
    }
}